22101102200121 has 16 divisors (see below), whose sum is σ = 33678139158528. Its totient is φ = 12629100330000.

The previous prime is 22101102200113. The next prime is 22101102200143. The reversal of 22101102200121 is 12100220110122.

It is not a de Polignac number, because 22101102200121 - 2³ = 22101102200113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22101102200121.

It is not an unprimeable number, because it can be changed into a prime (22101102200521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1473705 + ... + 6809846.

It is an arithmetic number, because the mean of its divisors is an integer number (2104883697408).

Almost surely, 2^{22101102200121} is an apocalyptic number.

22101102200121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22101102200121 is a deficient number, since it is larger than the sum of its proper divisors (11577036958407).

22101102200121 is a wasteful number, since it uses less digits than its factorization.

22101102200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8410612.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22101102200121 its reverse (12100220110122), we get a palindrome (34201322310243).

The spelling of 22101102200121 in words is "twenty-two trillion, one hundred one billion, one hundred two million, two hundred thousand, one hundred twenty-one".