102120000111021 has 16 divisors (see below), whose sum is σ = 142864972548480. Its totient is φ = 64760221056960.

The previous prime is 102120000110951. The next prime is 102120000111029. The reversal of 102120000111021 is 120111000021201.

It is not a de Polignac number, because 102120000111021 - 2¹⁸ = 102119999848877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102120000110988 and 102120000111006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120000111029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4088385306 + ... + 4088410283.

It is an arithmetic number, because the mean of its divisors is an integer number (8929060784280).

Almost surely, 2^{102120000111021} is an apocalyptic number.

It is an amenable number.

102120000111021 is a deficient number, since it is larger than the sum of its proper divisors (40744972437459).

102120000111021 is a wasteful number, since it uses less digits than its factorization.

102120000111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8176795796.

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

Adding to 102120000111021 its reverse (120111000021201), we get a palindrome (222231000132222).

The spelling of 102120000111021 in words is "one hundred two trillion, one hundred twenty billion, one hundred eleven thousand, twenty-one".