22111111222101 has 96 divisors (see below), whose sum is σ = 36936814561920. Its totient is φ = 13055122080000.

The previous prime is 22111111222093. The next prime is 22111111222153. The reversal of 22111111222101 is 10122211111122.

It is a happy number.

22111111222101 is a `hidden beast` number, since 221 + 1 + 111 + 122 + 210 + 1 = 666.

It is not a de Polignac number, because 22111111222101 - 2³ = 22111111222093 is a prime.

It is a super-2 number, since 2×22111111222101² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111111223101) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 93779106 + ... + 94014588.

It is an arithmetic number, because the mean of its divisors is an integer number (384758485020).

Almost surely, 2^{22111111222101} is an apocalyptic number.

It is an amenable number.

22111111222101 is a deficient number, since it is larger than the sum of its proper divisors (14825703339819).

22111111222101 is a wasteful number, since it uses less digits than its factorization.

22111111222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236256 (or 236239 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 22111111222101 its reverse (10122211111122), we get a palindrome (32233322333223).

The spelling of 22111111222101 in words is "twenty-two trillion, one hundred eleven billion, one hundred eleven million, two hundred twenty-two thousand, one hundred one".