100149122421 has 12 divisors (see below), whose sum is σ = 144686355840. Its totient is φ = 66753845160.

The previous prime is 100149122383. The next prime is 100149122441. The reversal of 100149122421 is 124221941001.

It is a happy number.

100149122421 is a `hidden beast` number, since 100 + 14 + 9 + 122 + 421 = 666.

It is not a de Polignac number, because 100149122421 - 2¹⁵ = 100149089653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100149122441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 967731 + ... + 1066208.

It is an arithmetic number, because the mean of its divisors is an integer number (12057196320).

Almost surely, 2^100149122421 is an apocalyptic number.

It is an amenable number.

100149122421 is a deficient number, since it is larger than the sum of its proper divisors (44537233419).

100149122421 is a wasteful number, since it uses less digits than its factorization.

100149122421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039416 (or 2039413 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 100149122421 in words is "one hundred billion, one hundred forty-nine million, one hundred twenty-two thousand, four hundred twenty-one".