22101212202112 has 64 divisors (see below), whose sum is σ = 46348625131200. Its totient is φ = 10468654009344.

The previous prime is 22101212202107. The next prime is 22101212202127. The reversal of 22101212202112 is 21120221210122.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 22101212202112.

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, 84398293 + ... + 84659755.

It is an arithmetic number, because the mean of its divisors is an integer number (724197267675).

Almost surely, 2^{22101212202112} is an apocalyptic number.

It is an amenable number.

22101212202112 is an abundant number, since it is smaller than the sum of its proper divisors (24247412929088).

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

22101212202112 is a wasteful number, since it uses less digits than its factorization.

22101212202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296253 (or 296241 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22101212202112 its reverse (21120221210122), we get a palindrome (43221433412234).

The spelling of 22101212202112 in words is "twenty-two trillion, one hundred one billion, two hundred twelve million, two hundred two thousand, one hundred twelve".