22101221002112 has 64 divisors (see below), whose sum is σ = 50378053939200. Its totient is φ = 9460975916544.

The previous prime is 22101221002043. The next prime is 22101221002123. The reversal of 22101221002112 is 21120012210122.

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

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, 13517912 + ... + 15064407.

It is an arithmetic number, because the mean of its divisors is an integer number (787157092800).

Almost surely, 2^{22101221002112} is an apocalyptic number.

It is an amenable number.

22101221002112 is an abundant number, since it is smaller than the sum of its proper divisors (28276832937088).

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

22101221002112 is an equidigital number, since it uses as much as digits as its factorization.

22101221002112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28583203 (or 28583191 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22101221002112 its reverse (21120012210122), we get a palindrome (43221233212234).

The spelling of 22101221002112 in words is "twenty-two trillion, one hundred one billion, two hundred twenty-one million, two thousand, one hundred twelve".