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21222233010 = 2335117145533
BaseRepresentation
bin10011110000111100…
…011001001110110010
32000210000101010202000
4103300330121032302
5321430342424020
613425510034430
71350623001306
oct236074311662
960700333660
1021222233010
119000440850
124143348a16
132002984a34
141054761d06
158431e9090
hex4f0f193b2

21222233010 has 64 divisors (see below), whose sum is σ = 61737413760. Its totient is φ = 5144783040.

The previous prime is 21222233003. The next prime is 21222233113. The reversal of 21222233010 is 1033222212.

Adding to 21222233010 its reverse (1033222212), we get a palindrome (22255455222).

It can be divided in two parts, 212 and 22233010, that added together give a palindrome (22233222).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3569797 + ... + 3575736.

It is an arithmetic number, because the mean of its divisors is an integer number (964647090).

Almost surely, 221222233010 is an apocalyptic number.

21222233010 is an abundant number, since it is smaller than the sum of its proper divisors (40515180750).

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

21222233010 is a wasteful number, since it uses less digits than its factorization.

21222233010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7145560 (or 7145554 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The spelling of 21222233010 in words is "twenty-one billion, two hundred twenty-two million, two hundred thirty-three thousand, ten".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 27 30 33 45 54 55 66 90 99 110 135 165 198 270 297 330 495 594 990 1485 2970 7145533 14291066 21436599 35727665 42873198 64309797 71455330 78600863 107182995 128619594 157201726 192929391 214365990 235802589 321548985 385858782 393004315 471605178 643097970 707407767 786008630 964646955 1179012945 1414815534 1929293910 2122223301 2358025890 3537038835 4244446602 7074077670 10611116505 21222233010