102223021200721 has 2 divisors, whose sum is σ = 102223021200722. Its totient is φ = 102223021200720.

The previous prime is 102223021200683. The next prime is 102223021200731. The reversal of 102223021200721 is 127002120322201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96065481690000 + 6157539510721 = 9801300^2 + 2481439^2 .

It is a cyclic number.

It is not a de Polignac number, because 102223021200721 - 2⁷ = 102223021200593 is a prime.

It is not a weakly prime, because it can be changed into another prime (102223021200731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51111510600360 + 51111510600361.

It is an arithmetic number, because the mean of its divisors is an integer number (51111510600361).

Almost surely, 2^{102223021200721} is an apocalyptic number.

It is an amenable number.

102223021200721 is a deficient number, since it is larger than the sum of its proper divisors (1).

102223021200721 is an equidigital number, since it uses as much as digits as its factorization.

102223021200721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 102223021200721 its reverse (127002120322201), we get a palindrome (229225141522922).

The spelling of 102223021200721 in words is "one hundred two trillion, two hundred twenty-three billion, twenty-one million, two hundred thousand, seven hundred twenty-one".