100020112122 has 48 divisors (see below), whose sum is σ = 232730978112. Its totient is φ = 28573352640.

The previous prime is 100020112103. The next prime is 100020112123. The reversal of 100020112122 is 221211020001.

It is a junction number, because it is equal to n+sod(n) for n = 100020112098 and 100020112107.

It is not an unprimeable number, because it can be changed into a prime (100020112123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2754678 + ... + 2790750.

It is an arithmetic number, because the mean of its divisors is an integer number (4848562044).

Almost surely, 2^100020112122 is an apocalyptic number.

100020112122 is an abundant number, since it is smaller than the sum of its proper divisors (132710865990).

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

100020112122 is a wasteful number, since it uses less digits than its factorization.

100020112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45523 (or 45516 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100020112122 its reverse (221211020001), we get a palindrome (321231132123).

The spelling of 100020112122 in words is "one hundred billion, twenty million, one hundred twelve thousand, one hundred twenty-two".