102100102021198 has 16 divisors (see below), whose sum is σ = 153232465357584. Its totient is φ = 51022620792000.

The previous prime is 102100102021189. The next prime is 102100102021199. The reversal of 102100102021198 is 891120201001201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102100102021199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26527186 + ... + 30131242.

It is an arithmetic number, because the mean of its divisors is an integer number (9577029084849).

Almost surely, 2^{102100102021198} is an apocalyptic number.

102100102021198 is a deficient number, since it is larger than the sum of its proper divisors (51132363336386).

102100102021198 is a wasteful number, since it uses less digits than its factorization.

102100102021198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3611667.

The product of its (nonzero) digits is 576, while the sum is 28.

Adding to 102100102021198 its reverse (891120201001201), we get a palindrome (993220303022399).

The spelling of 102100102021198 in words is "one hundred two trillion, one hundred billion, one hundred two million, twenty-one thousand, one hundred ninety-eight".