100012100122 has 24 divisors (see below), whose sum is σ = 165946339188. Its totient is φ = 45170473920.

The previous prime is 100012100093. The next prime is 100012100143. The reversal of 100012100122 is 221001210001.

It can be written as a sum of positive squares in 2 ways, for example, as 95672057481 + 4340042641 = 309309^2 + 65879^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100012100099 and 100012100108.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1278163 + ... + 1354150.

Almost surely, 2^100012100122 is an apocalyptic number.

100012100122 is a deficient number, since it is larger than the sum of its proper divisors (65934239066).

100012100122 is a wasteful number, since it uses less digits than its factorization.

100012100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632494 (or 2632483 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100012100122 its reverse (221001210001), we get a palindrome (321013310123).

The spelling of 100012100122 in words is "one hundred billion, twelve million, one hundred thousand, one hundred twenty-two".