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22002133212 = 2232827739021
BaseRepresentation
bin10100011111011011…
…011110100011011100
32002210100220011200200
4110133123132203130
5330030021230322
614035130023500
71406143021653
oct243733364334
962710804620
1022002133212
1193706a3374
124320577b90
1320c841ac47
1410ca17819a
1588b9008ac
hex51f6de8dc

22002133212 has 36 divisors (see below), whose sum is σ = 55683829656. Its totient is φ = 7325166240.

The previous prime is 22002133189. The next prime is 22002133289. The reversal of 22002133212 is 21233120022.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339739 + ... + 399282.

It is an arithmetic number, because the mean of its divisors is an integer number (1546773046).

Almost surely, 222002133212 is an apocalyptic number.

It is an amenable number.

22002133212 is an abundant number, since it is smaller than the sum of its proper divisors (33681696444).

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

22002133212 is a wasteful number, since it uses less digits than its factorization.

22002133212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739858 (or 739853 counting only the distinct ones).

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

Adding to 22002133212 its reverse (21233120022), we get a palindrome (43235253234).

The spelling of 22002133212 in words is "twenty-two billion, two million, one hundred thirty-three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 827 1654 2481 3308 4962 7443 9924 14886 29772 739021 1478042 2217063 2956084 4434126 6651189 8868252 13302378 26604756 611170367 1222340734 1833511101 2444681468 3667022202 5500533303 7334044404 11001066606 22002133212