102120111112101 has 32 divisors (see below), whose sum is σ = 137585637636096. Its totient is φ = 67371234840000.

The previous prime is 102120111112093. The next prime is 102120111112111. The reversal of 102120111112101 is 101211111021201.

It is not a de Polignac number, because 102120111112101 - 2³ = 102120111112093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120111112111) 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, 171231576 + ... + 171826926.

It is an arithmetic number, because the mean of its divisors is an integer number (4299551176128).

Almost surely, 2^{102120111112101} is an apocalyptic number.

It is an amenable number.

102120111112101 is a deficient number, since it is larger than the sum of its proper divisors (35465526523995).

102120111112101 is a wasteful number, since it uses less digits than its factorization.

102120111112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596993.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 102120111112101 its reverse (101211111021201), we get a palindrome (203331222133302).

The spelling of 102120111112101 in words is "one hundred two trillion, one hundred twenty billion, one hundred eleven million, one hundred twelve thousand, one hundred one".