22220121122111 has 32 divisors (see below), whose sum is σ = 24778691444736. Its totient is φ = 19752113052000.

The previous prime is 22220121122093. The next prime is 22220121122167. The reversal of 22220121122111 is 11122112102222.

It is a cyclic number.

It is not a de Polignac number, because 22220121122111 - 2²² = 22220116927807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220121122011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4599484466 + ... + 4599489296.

It is an arithmetic number, because the mean of its divisors is an integer number (774334107648).

Almost surely, 2^{22220121122111} is an apocalyptic number.

22220121122111 is a deficient number, since it is larger than the sum of its proper divisors (2558570322625).

22220121122111 is a wasteful number, since it uses less digits than its factorization.

22220121122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11243.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 22220121122111 its reverse (11122112102222), we get a palindrome (33342233224333).

It can be divided in two parts, 222201 and 21122111, that added together give a palindrome (21344312).

The spelling of 22220121122111 in words is "twenty-two trillion, two hundred twenty billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred eleven".