100102112122 has 4 divisors (see below), whose sum is σ = 150153168186. Its totient is φ = 50051056060.

The previous prime is 100102112107. The next prime is 100102112179. The reversal of 100102112122 is 221211201001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221211201001 = 7 ⋅31601600143.

It can be written as a sum of positive squares in only one way, i.e., 79259703961 + 20842408161 = 281531^2 + 144369^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25025528029 + ... + 25025528032.

Almost surely, 2^100102112122 is an apocalyptic number.

100102112122 is a deficient number, since it is larger than the sum of its proper divisors (50051056064).

100102112122 is an equidigital number, since it uses as much as digits as its factorization.

100102112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50051056063.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100102112122 its reverse (221211201001), we get a palindrome (321313313123).

The spelling of 100102112122 in words is "one hundred billion, one hundred two million, one hundred twelve thousand, one hundred twenty-two".