22120422101 has 2 divisors, whose sum is σ = 22120422102. Its totient is φ = 22120422100.

The previous prime is 22120422091. The next prime is 22120422127. The reversal of 22120422101 is 10122402122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18185871025 + 3934551076 = 134855^2 + 62726^2 .

It is a cyclic number.

It is not a de Polignac number, because 22120422101 - 2²⁶ = 22053313237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22120422101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22120422601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060211050 + 11060211051.

It is an arithmetic number, because the mean of its divisors is an integer number (11060211051).

Almost surely, 2^22120422101 is an apocalyptic number.

It is an amenable number.

22120422101 is a deficient number, since it is larger than the sum of its proper divisors (1).

22120422101 is an equidigital number, since it uses as much as digits as its factorization.

22120422101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22120422101 its reverse (10122402122), we get a palindrome (32242824223).

The spelling of 22120422101 in words is "twenty-two billion, one hundred twenty million, four hundred twenty-two thousand, one hundred one".