102201021001951 has 2 divisors, whose sum is σ = 102201021001952. Its totient is φ = 102201021001950.

The previous prime is 102201021001943. The next prime is 102201021002023. The reversal of 102201021001951 is 159100120102201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102201021001951 - 2³ = 102201021001943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102201021001931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51100510500975 + 51100510500976.

It is an arithmetic number, because the mean of its divisors is an integer number (51100510500976).

Almost surely, 2^{102201021001951} is an apocalyptic number.

102201021001951 is a deficient number, since it is larger than the sum of its proper divisors (1).

102201021001951 is an equidigital number, since it uses as much as digits as its factorization.

102201021001951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 25.

The spelling of 102201021001951 in words is "one hundred two trillion, two hundred one billion, twenty-one million, one thousand, nine hundred fifty-one".