22421520113 has 2 divisors, whose sum is σ = 22421520114. Its totient is φ = 22421520112.

The previous prime is 22421520091. The next prime is 22421520137. The reversal of 22421520113 is 31102512422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22378065649 + 43454464 = 149593^2 + 6592^2 .

It is a cyclic number.

It is not a de Polignac number, because 22421520113 - 2¹⁰ = 22421519089 is a prime.

It is not a weakly prime, because it can be changed into another prime (22421520193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11210760056 + 11210760057.

It is an arithmetic number, because the mean of its divisors is an integer number (11210760057).

Almost surely, 2^22421520113 is an apocalyptic number.

It is an amenable number.

22421520113 is a deficient number, since it is larger than the sum of its proper divisors (1).

22421520113 is an equidigital number, since it uses as much as digits as its factorization.

22421520113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The spelling of 22421520113 in words is "twenty-two billion, four hundred twenty-one million, five hundred twenty thousand, one hundred thirteen".