222111011001212 has 24 divisors (see below), whose sum is σ = 395252865902160. Its totient is φ = 109187983681920.

The previous prime is 222111011001211. The next prime is 222111011001329. The reversal of 222111011001212 is 212100110111222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222111011001211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 795227387 + ... + 795506642.

It is an arithmetic number, because the mean of its divisors is an integer number (16468869412590).

Almost surely, 2^{222111011001212} is an apocalyptic number.

It is an amenable number.

222111011001212 is a deficient number, since it is larger than the sum of its proper divisors (173141854900948).

222111011001212 is a wasteful number, since it uses less digits than its factorization.

222111011001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590734621 (or 1590734619 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 222111011001212 its reverse (212100110111222), we get a palindrome (434211121112434).

The spelling of 222111011001212 in words is "two hundred twenty-two trillion, one hundred eleven billion, eleven million, one thousand, two hundred twelve".