100102122 has 16 divisors (see below), whose sum is σ = 222449280. Its totient is φ = 33367356.

The previous prime is 100102081. The next prime is 100102129. The reversal of 100102122 is 221201001.

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 (100102129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926818 + ... + 926925.

It is an arithmetic number, because the mean of its divisors is an integer number (13903080).

Almost surely, 2^100102122 is an apocalyptic number.

100102122 is an abundant number, since it is smaller than the sum of its proper divisors (122347158).

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

100102122 is a wasteful number, since it uses less digits than its factorization.

100102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853754 (or 1853748 counting only the distinct ones).

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

The square root of 100102122 is about 10005.1047970524. The cubic root of 100102122 is about 464.3168323849.

Adding to 100102122 its reverse (221201001), we get a palindrome (321303123).

The spelling of 100102122 in words is "one hundred million, one hundred two thousand, one hundred twenty-two".