22212102121212 has 24 divisors (see below), whose sum is σ = 51828371876736. Its totient is φ = 7404014955568.

The previous prime is 22212102121189. The next prime is 22212102121289. The reversal of 22212102121212 is 21212120121222.

22212102121212 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 2939233 + ... + 7284455.

It is an arithmetic number, because the mean of its divisors is an integer number (2159515494864).

Almost surely, 2^{22212102121212} is an apocalyptic number.

It is an amenable number.

22212102121212 is an abundant number, since it is smaller than the sum of its proper divisors (29616269755524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22212102121212 is a wasteful number, since it uses less digits than its factorization.

22212102121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4771217 (or 4771215 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22212102121212 its reverse (21212120121222), we get a palindrome (43424222242434).

The spelling of 22212102121212 in words is "twenty-two trillion, two hundred twelve billion, one hundred two million, one hundred twenty-one thousand, two hundred twelve".