20331222999953 has 2 divisors, whose sum is σ = 20331222999954. Its totient is φ = 20331222999952.

The previous prime is 20331222999949. The next prime is 20331223000001. The reversal of 20331222999953 is 35999922213302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13919935669249 + 6411287330704 = 3730943^2 + 2532052^2 .

It is a cyclic number.

It is not a de Polignac number, because 20331222999953 - 2² = 20331222999949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20331222999892 and 20331222999901.

It is not a weakly prime, because it can be changed into another prime (20331222099953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165611499976 + 10165611499977.

It is an arithmetic number, because the mean of its divisors is an integer number (10165611499977).

Almost surely, 2^{20331222999953} is an apocalyptic number.

It is an amenable number.

20331222999953 is a deficient number, since it is larger than the sum of its proper divisors (1).

20331222999953 is an equidigital number, since it uses as much as digits as its factorization.

20331222999953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14171760, while the sum is 59.

The spelling of 20331222999953 in words is "twenty trillion, three hundred thirty-one billion, two hundred twenty-two million, nine hundred ninety-nine thousand, nine hundred fifty-three".