100121145102 has 48 divisors (see below), whose sum is σ = 238101896448. Its totient is φ = 30153597840.

The previous prime is 100121145097. The next prime is 100121145127. The reversal of 100121145102 is 201541121001.

100121145102 is a `hidden beast` number, since 1 + 0 + 0 + 1 + 211 + 451 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1518838 + ... + 1583385.

It is an arithmetic number, because the mean of its divisors is an integer number (4960456176).

Almost surely, 2^100121145102 is an apocalyptic number.

100121145102 is an abundant number, since it is smaller than the sum of its proper divisors (137980751346).

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

100121145102 is a wasteful number, since it uses less digits than its factorization.

100121145102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3102405 (or 3102402 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 100121145102 its reverse (201541121001), we get a palindrome (301662266103).

The spelling of 100121145102 in words is "one hundred billion, one hundred twenty-one million, one hundred forty-five thousand, one hundred two".