100002100122 has 32 divisors (see below), whose sum is σ = 223205889600. Its totient is φ = 33187183344.

The previous prime is 100002100117. The next prime is 100002100127. The reversal of 100002100122 is 221001200001.

It is an interprime number because it is at equal distance from previous prime (100002100117) and next prime (100002100127).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (100002100127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4066797 + ... + 4091312.

It is an arithmetic number, because the mean of its divisors is an integer number (6975184050).

Almost surely, 2^100002100122 is an apocalyptic number.

100002100122 is an abundant number, since it is smaller than the sum of its proper divisors (123203789478).

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

100002100122 is a wasteful number, since it uses less digits than its factorization.

100002100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8158347 (or 8158341 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 100002100122 its reverse (221001200001), we get a palindrome (321003300123).

The spelling of 100002100122 in words is "one hundred billion, two million, one hundred thousand, one hundred twenty-two".