22120111122101 has 4 divisors (see below), whose sum is σ = 22120233032172. Its totient is φ = 22119989212032.

The previous prime is 22120111122091. The next prime is 22120111122119. The reversal of 22120111122101 is 10122111102122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7700236504900 + 14419874617201 = 2774930^2 + 3797351^2 .

It is a cyclic number.

It is not a de Polignac number, because 22120111122101 - 2¹⁴ = 22120111105717 is a prime.

It is a super-2 number, since 2×22120111122101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22120111122101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120111122001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60682460 + ... + 61045893.

It is an arithmetic number, because the mean of its divisors is an integer number (5530058258043).

Almost surely, 2^{22120111122101} is an apocalyptic number.

It is an amenable number.

22120111122101 is a deficient number, since it is larger than the sum of its proper divisors (121910071).

22120111122101 is a wasteful number, since it uses less digits than its factorization.

22120111122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121910070.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22120111122101 its reverse (10122111102122), we get a palindrome (32242222224223).

The spelling of 22120111122101 in words is "twenty-two trillion, one hundred twenty billion, one hundred eleven million, one hundred twenty-two thousand, one hundred one".