102204101555 has 32 divisors (see below), whose sum is σ = 126607644864. Its totient is φ = 79145289216.

The previous prime is 102204101491. The next prime is 102204101561. The reversal of 102204101555 is 555101402201.

It is a cyclic number.

It is not a de Polignac number, because 102204101555 - 2⁶ = 102204101491 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35947964 + ... + 35950806.

It is an arithmetic number, because the mean of its divisors is an integer number (3956488902).

Almost surely, 2^102204101555 is an apocalyptic number.

102204101555 is a deficient number, since it is larger than the sum of its proper divisors (24403543309).

102204101555 is a wasteful number, since it uses less digits than its factorization.

102204101555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3815.

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 102204101555 its reverse (555101402201), we get a palindrome (657305503756).

The spelling of 102204101555 in words is "one hundred two billion, two hundred four million, one hundred one thousand, five hundred fifty-five".