22121112134212 has 24 divisors (see below), whose sum is σ = 47645472289856. Its totient is φ = 8751209195808.

The previous prime is 22121112134197. The next prime is 22121112134239. The reversal of 22121112134212 is 21243121112122.

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, 30386142678 + ... + 30386143405.

Almost surely, 2^{22121112134212} is an apocalyptic number.

It is an amenable number.

22121112134212 is an abundant number, since it is smaller than the sum of its proper divisors (25524360155644).

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

22121112134212 is a wasteful number, since it uses less digits than its factorization.

22121112134212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60772286107 (or 60772286105 counting only the distinct ones).

The product of its digits is 768, while the sum is 25.

Adding to 22121112134212 its reverse (21243121112122), we get a palindrome (43364233246334).

The spelling of 22121112134212 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred twelve million, one hundred thirty-four thousand, two hundred twelve".