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22131123120210 = 2351379718309741
BaseRepresentation
bin1010000100000110011011…
…01110110110100001010010
32220100201022000121000112110
411002003031232312201102
510400044020004321320
6115022521514410150
74442630601453156
oct502031556664122
986321260530473
1022131123120210
117062836053875
1225951b0430956
13c46c57306cb0
1456721b413066
15285a345c85e0
hex1420cdbb6852

22131123120210 has 64 divisors (see below), whose sum is σ = 57924497594880. Its totient is φ = 5378703333120.

The previous prime is 22131123120143. The next prime is 22131123120247. The reversal of 22131123120210 is 1202132113122.

It is a super-2 number, since 2×221311231202102 (a number of 27 digits) contains 22 as substring.

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, 359124061 + ... + 359185680.

It is an arithmetic number, because the mean of its divisors is an integer number (905070274920).

Almost surely, 222131123120210 is an apocalyptic number.

22131123120210 is an abundant number, since it is smaller than the sum of its proper divisors (35793374474670).

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

22131123120210 is a wasteful number, since it uses less digits than its factorization.

22131123120210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718309843.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 22131123120210 its reverse (1202132113122), we get a palindrome (23333255233332).

The spelling of 22131123120210 in words is "twenty-two trillion, one hundred thirty-one billion, one hundred twenty-three million, one hundred twenty thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 79 130 158 195 237 390 395 474 790 1027 1185 2054 2370 3081 5135 6162 10270 15405 30810 718309741 1436619482 2154929223 3591548705 4309858446 7183097410 9338026633 10774646115 18676053266 21549292230 28014079899 46690133165 56028159798 56746469539 93380266330 113492939078 140070399495 170239408617 280140798990 283732347695 340478817234 567464695390 737704104007 851197043085 1475408208014 1702394086170 2213112312021 3688520520035 4426224624042 7377041040070 11065561560105 22131123120210