222112101222212 has 6 divisors (see below), whose sum is σ = 388696177138878. Its totient is φ = 111056050611104.

The previous prime is 222112101222173. The next prime is 222112101222227. The reversal of 222112101222212 is 212222101211222.

It can be written as a sum of positive squares in only one way, i.e., 192859212165376 + 29252889056836 = 13887376^2 + 5408594^2 .

It is a super-2 number, since 2×222112101222212² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27764012652773 + ... + 27764012652780.

It is an arithmetic number, because the mean of its divisors is an integer number (64782696189813).

Almost surely, 2^{222112101222212} is an apocalyptic number.

It is an amenable number.

222112101222212 is a deficient number, since it is larger than the sum of its proper divisors (166584075916666).

222112101222212 is a wasteful number, since it uses less digits than its factorization.

222112101222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55528025305557 (or 55528025305555 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 222112101222212 its reverse (212222101211222), we get a palindrome (434334202433434).

The spelling of 222112101222212 in words is "two hundred twenty-two trillion, one hundred twelve billion, one hundred one million, two hundred twenty-two thousand, two hundred twelve".