100401421100 has 18 divisors (see below), whose sum is σ = 217871084004. Its totient is φ = 40160568400.

The previous prime is 100401421079. The next prime is 100401421187. The reversal of 100401421100 is 1124104001.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 502007006 + ... + 502007205.

Almost surely, 2^100401421100 is an apocalyptic number.

100401421100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100401421100 is an abundant number, since it is smaller than the sum of its proper divisors (117469662904).

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

100401421100 is a wasteful number, since it uses less digits than its factorization.

100401421100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004014225 (or 1004014218 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100401421100 its reverse (1124104001), we get a palindrome (101525525101).

The spelling of 100401421100 in words is "one hundred billion, four hundred one million, four hundred twenty-one thousand, one hundred".