22111121112201 has 64 divisors (see below), whose sum is σ = 35850428640000. Its totient is φ = 13357493360640.

The previous prime is 22111121112181. The next prime is 22111121112209. The reversal of 22111121112201 is 10221112111122.

It is a happy number.

22111121112201 is a `hidden beast` number, since 221 + 1 + 11 + 211 + 1 + 220 + 1 = 666.

It is not a de Polignac number, because 22111121112201 - 2⁴² = 17713074601097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22111121112209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 178898841 + ... + 179022393.

It is an arithmetic number, because the mean of its divisors is an integer number (560162947500).

Almost surely, 2^{22111121112201} is an apocalyptic number.

It is an amenable number.

22111121112201 is a deficient number, since it is larger than the sum of its proper divisors (13739307527799).

22111121112201 is a wasteful number, since it uses less digits than its factorization.

22111121112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125511 (or 125505 counting only the distinct ones).

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

Adding to 22111121112201 its reverse (10221112111122), we get a palindrome (32332233223323).

It can be divided in two parts, 221111 and 21112201, that added together give a palindrome (21333312).

The spelling of 22111121112201 in words is "twenty-two trillion, one hundred eleven billion, one hundred twenty-one million, one hundred twelve thousand, two hundred one".