22102111101212 has 12 divisors (see below), whose sum is σ = 38810703625176. Its totient is φ = 11013338636880.

The previous prime is 22102111101181. The next prime is 22102111101253. The reversal of 22102111101212 is 21210111120122.

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, 9429227114 + ... + 9429229457.

It is an arithmetic number, because the mean of its divisors is an integer number (3234225302098).

Almost surely, 2^{22102111101212} is an apocalyptic number.

It is an amenable number.

22102111101212 is a deficient number, since it is larger than the sum of its proper divisors (16708592523964).

22102111101212 is a wasteful number, since it uses less digits than its factorization.

22102111101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18858456868 (or 18858456866 counting only the distinct ones).

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

Adding to 22102111101212 its reverse (21210111120122), we get a palindrome (43312222221334).

The spelling of 22102111101212 in words is "twenty-two trillion, one hundred two billion, one hundred eleven million, one hundred one thousand, two hundred twelve".