100012112122 has 16 divisors (see below), whose sum is σ = 162720321120. Its totient is φ = 45827352432.

The previous prime is 100012112069. The next prime is 100012112197. The reversal of 100012112122 is 221211210001.

It is a super-2 number, since 2×100012112122² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13833148 + ... + 13840375.

It is an arithmetic number, because the mean of its divisors is an integer number (10170020070).

Almost surely, 2^100012112122 is an apocalyptic number.

100012112122 is a deficient number, since it is larger than the sum of its proper divisors (62708208998).

100012112122 is a wasteful number, since it uses less digits than its factorization.

100012112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27673677.

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

Adding to 100012112122 its reverse (221211210001), we get a palindrome (321223322123).

The spelling of 100012112122 in words is "one hundred billion, twelve million, one hundred twelve thousand, one hundred twenty-two".