22021125055111 has 48 divisors (see below), whose sum is σ = 27397704327168. Its totient is φ = 17330263891200.

The previous prime is 22021125055109. The next prime is 22021125055117. The reversal of 22021125055111 is 11155052112022.

It is not a de Polignac number, because 22021125055111 - 2¹ = 22021125055109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22021125055111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021125055117) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 194543371 + ... + 194656531.

It is an arithmetic number, because the mean of its divisors is an integer number (570785506816).

Almost surely, 2^{22021125055111} is an apocalyptic number.

22021125055111 is a deficient number, since it is larger than the sum of its proper divisors (5376579272057).

22021125055111 is a wasteful number, since it uses less digits than its factorization.

22021125055111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114072 (or 114059 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 28.

Adding to 22021125055111 its reverse (11155052112022), we get a palindrome (33176177167133).

The spelling of 22021125055111 in words is "twenty-two trillion, twenty-one billion, one hundred twenty-five million, fifty-five thousand, one hundred eleven".