102110012121 has 32 divisors (see below), whose sum is σ = 148615004160. Its totient is φ = 61983215424.

The previous prime is 102110012101. The next prime is 102110012131. The reversal of 102110012121 is 121210011201.

It is not a de Polignac number, because 102110012121 - 2⁶ = 102110012057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102110012097 and 102110012106.

It is not an unprimeable number, because it can be changed into a prime (102110012101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3383320 + ... + 3413366.

It is an arithmetic number, because the mean of its divisors is an integer number (4644218880).

Almost surely, 2^102110012121 is an apocalyptic number.

It is an amenable number.

102110012121 is a deficient number, since it is larger than the sum of its proper divisors (46504992039).

102110012121 is a wasteful number, since it uses less digits than its factorization.

102110012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31245.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102110012121 its reverse (121210011201), we get a palindrome (223320023322).

The spelling of 102110012121 in words is "one hundred two billion, one hundred ten million, twelve thousand, one hundred twenty-one".