102100011022121 has 24 divisors (see below), whose sum is σ = 118937797130880. Its totient is φ = 87390223728192.

The previous prime is 102100011022081. The next prime is 102100011022123. The reversal of 102100011022121 is 121220110001201.

It is not a de Polignac number, because 102100011022121 - 2³⁸ = 101825133115177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102100011022096 and 102100011022105.

It is not an unprimeable number, because it can be changed into a prime (102100011022123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1148191700 + ... + 1148280618.

It is an arithmetic number, because the mean of its divisors is an integer number (4955741547120).

Almost surely, 2^{102100011022121} is an apocalyptic number.

It is an amenable number.

102100011022121 is a deficient number, since it is larger than the sum of its proper divisors (16837786108759).

102100011022121 is an equidigital number, since it uses as much as digits as its factorization.

102100011022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121893 (or 121886 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102100011022121 its reverse (121220110001201), we get a palindrome (223320121023322).

The spelling of 102100011022121 in words is "one hundred two trillion, one hundred billion, eleven million, twenty-two thousand, one hundred twenty-one".