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21022201122 = 231317193112683
BaseRepresentation
bin10011100101000001…
…010101010100100010
32000021001222110120120
4103211001111110202
5321023140413442
613354002421110
71342643522046
oct234501252442
960231873516
1021022201122
118a0853693a
1240a8361796
131ca03b9080
141035d72026
158308854ec
hex4e5055522

21022201122 has 128 divisors (see below), whose sum is σ = 50646435840. Its totient is φ = 5746775040.

The previous prime is 21022201111. The next prime is 21022201153. The reversal of 21022201122 is 22110222012.

Adding to 21022201122 its reverse (22110222012), we get a palindrome (43132423134).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7833993 + ... + 7836675.

It is an arithmetic number, because the mean of its divisors is an integer number (395675280).

Almost surely, 221022201122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21022201122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25323217920).

21022201122 is an abundant number, since it is smaller than the sum of its proper divisors (29624234718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21022201122 is a wasteful number, since it uses less digits than its factorization.

21022201122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048.

The product of its (nonzero) digits is 64, while the sum is 15.

The spelling of 21022201122 in words is "twenty-one billion, twenty-two million, two hundred one thousand, one hundred twenty-two".

Divisors: 1 2 3 6 13 17 19 26 34 38 39 51 57 78 102 114 221 247 311 323 442 494 622 646 663 741 933 969 1326 1482 1866 1938 2683 4043 4199 5287 5366 5909 8049 8086 8398 10574 11818 12129 12597 15861 16098 17727 24258 25194 31722 34879 35454 45611 50977 68731 69758 76817 91222 100453 101954 104637 136833 137462 152931 153634 200906 206193 209274 230451 273666 301359 305862 412386 460902 592943 602718 662701 834413 866609 1185886 1305889 1325402 1668826 1733218 1778829 1988103 2503239 2599827 2611778 3557658 3917667 3976206 5006478 5199654 7835334 10847369 11265917 14185021 15853847 21694738 22531834 28370042 31707694 32542107 33797751 42555063 47561541 65084214 67595502 85110126 95123082 184405273 206100011 269515399 368810546 412200022 539030798 553215819 618300033 808546197 1106431638 1236600066 1617092394 3503700187 7007400374 10511100561 21022201122