222221010122212 has 24 divisors (see below), whose sum is σ = 415839315984120. Its totient is φ = 103539200985600.

The previous prime is 222221010122183. The next prime is 222221010122311. The reversal of 222221010122212 is 212221010122222.

It can be written as a sum of positive squares in 4 ways, for example, as 133527823819776 + 88693186302436 = 11555424^2 + 9417706^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16177993287 + ... + 16178007022.

It is an arithmetic number, because the mean of its divisors is an integer number (17326638166005).

Almost surely, 2^{222221010122212} is an apocalyptic number.

It is an amenable number.

222221010122212 is a deficient number, since it is larger than the sum of its proper divisors (193618305861908).

222221010122212 is a wasteful number, since it uses less digits than its factorization.

222221010122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32356000431 (or 32356000429 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 222221010122212 its reverse (212221010122222), we get a palindrome (434442020244434).

It can be divided in two parts, 222221010 and 122212, that added together give a palindrome (222343222).

The spelling of 222221010122212 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, ten million, one hundred twenty-two thousand, two hundred twelve".