21023100322207 has 2 divisors, whose sum is σ = 21023100322208. Its totient is φ = 21023100322206.

The previous prime is 21023100322199. The next prime is 21023100322271. The reversal of 21023100322207 is 70222300132012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21023100322207 - 2³ = 21023100322199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21023100622207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10511550161103 + 10511550161104.

It is an arithmetic number, because the mean of its divisors is an integer number (10511550161104).

Almost surely, 2^{21023100322207} is an apocalyptic number.

21023100322207 is a deficient number, since it is larger than the sum of its proper divisors (1).

21023100322207 is an equidigital number, since it uses as much as digits as its factorization.

21023100322207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 21023100322207 its reverse (70222300132012), we get a palindrome (91245400454219).

The spelling of 21023100322207 in words is "twenty-one trillion, twenty-three billion, one hundred million, three hundred twenty-two thousand, two hundred seven".