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22010202212 = 225821945293
BaseRepresentation
bin10100011111111010…
…010000100001100100
32002210221002010021112
4110133322100201210
5330034102432322
614040015004152
71406301426515
oct243772204144
962727063245
1022010202212
119375204769
124323209658
1320c9cb48bb
1410cb278a0c
1588c4965e2
hex51fe90864

22010202212 has 12 divisors (see below), whose sum is σ = 38524511676. Its totient is φ = 11003198880.

The previous prime is 22010202127. The next prime is 22010202217. The reversal of 22010202212 is 21220201022.

It can be written as a sum of positive squares in 2 ways, for example, as 12520714816 + 9489487396 = 111896^2 + 97414^2 .

It is not an unprimeable number, because it can be changed into a prime (22010202217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449363 + ... + 495930.

It is an arithmetic number, because the mean of its divisors is an integer number (3210375973).

Almost surely, 222010202212 is an apocalyptic number.

It is an amenable number.

22010202212 is a deficient number, since it is larger than the sum of its proper divisors (16514309464).

22010202212 is a wasteful number, since it uses less digits than its factorization.

22010202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951118 (or 951116 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22010202212 its reverse (21220201022), we get a palindrome (43230403234).

The spelling of 22010202212 in words is "twenty-two billion, ten million, two hundred two thousand, two hundred twelve".

Divisors: 1 2 4 5821 11642 23284 945293 1890586 3781172 5502550553 11005101106 22010202212