212221022102112 has 48 divisors (see below), whose sum is σ = 557616352849920. Its totient is φ = 70672255642752.

The previous prime is 212221022102051. The next prime is 212221022102203. The reversal of 212221022102112 is 211201220122212.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×212221022102112² (a number of 29 digits) contains 22 as substring.

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, 1063728768 + ... + 1063928255.

It is an arithmetic number, because the mean of its divisors is an integer number (11617007351040).

Almost surely, 2^{212221022102112} is an apocalyptic number.

It is an amenable number.

212221022102112 is an abundant number, since it is smaller than the sum of its proper divisors (345395330747808).

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

212221022102112 is a wasteful number, since it uses less digits than its factorization.

212221022102112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127658075 (or 2127658067 counting only the distinct ones).

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

Adding to 212221022102112 its reverse (211201220122212), we get a palindrome (423422242224324).

The spelling of 212221022102112 in words is "two hundred twelve trillion, two hundred twenty-one billion, twenty-two million, one hundred two thousand, one hundred twelve".