22515010222501 has 2 divisors, whose sum is σ = 22515010222502. Its totient is φ = 22515010222500.

The previous prime is 22515010222487. The next prime is 22515010222541. The reversal of 22515010222501 is 10522201051522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14264414634276 + 8250595588225 = 3776826^2 + 2872385^2 .

It is a cyclic number.

It is not a de Polignac number, because 22515010222501 - 2⁵ = 22515010222469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22515010222501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22515010222541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11257505111250 + 11257505111251.

It is an arithmetic number, because the mean of its divisors is an integer number (11257505111251).

Almost surely, 2^{22515010222501} is an apocalyptic number.

It is an amenable number.

22515010222501 is a deficient number, since it is larger than the sum of its proper divisors (1).

22515010222501 is an equidigital number, since it uses as much as digits as its factorization.

22515010222501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 22515010222501 in words is "twenty-two trillion, five hundred fifteen billion, ten million, two hundred twenty-two thousand, five hundred one".