102121100200195 has 16 divisors (see below), whose sum is σ = 123036188492160. Its totient is φ = 81369824227200.

The previous prime is 102121100200157. The next prime is 102121100200307. The reversal of 102121100200195 is 591002001121201.

It is not a de Polignac number, because 102121100200195 - 2²⁷ = 102120965982467 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7536040 + ... + 16156549.

It is an arithmetic number, because the mean of its divisors is an integer number (7689761780760).

Almost surely, 2^{102121100200195} is an apocalyptic number.

102121100200195 is a deficient number, since it is larger than the sum of its proper divisors (20915088291965).

102121100200195 is a wasteful number, since it uses less digits than its factorization.

102121100200195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23696046.

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

Adding to 102121100200195 its reverse (591002001121201), we get a palindrome (693123101321396).

The spelling of 102121100200195 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred million, two hundred thousand, one hundred ninety-five".