22111220120001 has 16 divisors (see below), whose sum is σ = 29505588911040. Its totient is φ = 14728833247680.

The previous prime is 22111220119979. The next prime is 22111220120089. The reversal of 22111220120001 is 10002102211122.

It is not a de Polignac number, because 22111220120001 - 2²⁵ = 22111186565569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22111220120401) 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, 117912751 + ... + 118100123.

It is an arithmetic number, because the mean of its divisors is an integer number (1844099306940).

Almost surely, 2^{22111220120001} is an apocalyptic number.

It is an amenable number.

22111220120001 is a deficient number, since it is larger than the sum of its proper divisors (7394368791039).

22111220120001 is a wasteful number, since it uses less digits than its factorization.

22111220120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219136.

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

Adding to 22111220120001 its reverse (10002102211122), we get a palindrome (32113322331123).

The spelling of 22111220120001 in words is "twenty-two trillion, one hundred eleven billion, two hundred twenty million, one hundred twenty thousand, one".