22121322020101 has 2 divisors, whose sum is σ = 22121322020102. Its totient is φ = 22121322020100.

The previous prime is 22121322020051. The next prime is 22121322020183. The reversal of 22121322020101 is 10102022312122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11088893340001 + 11032428680100 = 3329999^2 + 3321510^2 .

It is a cyclic number.

It is not a de Polignac number, because 22121322020101 - 2¹¹ = 22121322018053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22121322020191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060661010050 + 11060661010051.

It is an arithmetic number, because the mean of its divisors is an integer number (11060661010051).

Almost surely, 2^{22121322020101} is an apocalyptic number.

It is an amenable number.

22121322020101 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121322020101 is an equidigital number, since it uses as much as digits as its factorization.

22121322020101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 22121322020101 its reverse (10102022312122), we get a palindrome (32223344332223).

The spelling of 22121322020101 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred twenty-two million, twenty thousand, one hundred one".