102111221101122 has 12 divisors (see below), whose sum is σ = 221240979052470. Its totient is φ = 34037073700368.

The previous prime is 102111221101103. The next prime is 102111221101139. The reversal of 102111221101122 is 221101122111201.

It is a happy number.

102111221101122 is a `hidden beast` number, since 10 + 211 + 1 + 221 + 101 + 122 = 666.

It can be written as a sum of positive squares in only one way, i.e., 87608308324761 + 14502912776361 = 9359931^2 + 3808269^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 5672845616729 = 102111221101122 / (1 + 0 + 2 + 1 + 1 + 1 + 2 + 2 + 1 + 1 + 0 + 1 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 102111221101095 and 102111221101104.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2836422808347 + ... + 2836422808382.

Almost surely, 2^{102111221101122} is an apocalyptic number.

102111221101122 is an abundant number, since it is smaller than the sum of its proper divisors (119129757951348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102111221101122 is a wasteful number, since it uses less digits than its factorization.

102111221101122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5672845616737 (or 5672845616734 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 102111221101122 its reverse (221101122111201), we get a palindrome (323212343212323).

The spelling of 102111221101122 in words is "one hundred two trillion, one hundred eleven billion, two hundred twenty-one million, one hundred one thousand, one hundred twenty-two".