22620405210397 has 2 divisors, whose sum is σ = 22620405210398. Its totient is φ = 22620405210396.

The previous prime is 22620405210311. The next prime is 22620405210413. The reversal of 22620405210397 is 79301250402622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22083429888601 + 536975321796 = 4699301^2 + 732786^2 .

It is a cyclic number.

It is not a de Polignac number, because 22620405210397 - 2⁷ = 22620405210269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22620405210097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11310202605198 + 11310202605199.

It is an arithmetic number, because the mean of its divisors is an integer number (11310202605199).

Almost surely, 2^{22620405210397} is an apocalyptic number.

It is an amenable number.

22620405210397 is a deficient number, since it is larger than the sum of its proper divisors (1).

22620405210397 is an equidigital number, since it uses as much as digits as its factorization.

22620405210397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 22620405210397 in words is "twenty-two trillion, six hundred twenty billion, four hundred five million, two hundred ten thousand, three hundred ninety-seven".