22011112112212 has 12 divisors (see below), whose sum is σ = 40194204726816. Its totient is φ = 10527053618840.

The previous prime is 22011112112183. The next prime is 22011112112279. The reversal of 22011112112212 is 21221121111022.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22011112112212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119625609214 + ... + 119625609397.

It is an arithmetic number, because the mean of its divisors is an integer number (3349517060568).

Almost surely, 2^{22011112112212} is an apocalyptic number.

It is an amenable number.

22011112112212 is a deficient number, since it is larger than the sum of its proper divisors (18183092614604).

22011112112212 is a wasteful number, since it uses less digits than its factorization.

22011112112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239251218638 (or 239251218636 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 22011112112212 its reverse (21221121111022), we get a palindrome (43232233223234).

The spelling of 22011112112212 in words is "twenty-two trillion, eleven billion, one hundred twelve million, one hundred twelve thousand, two hundred twelve".