21414602100 has 72 divisors (see below), whose sum is σ = 62200893888. Its totient is φ = 5688320000.

The previous prime is 21414601961. The next prime is 21414602113. The reversal of 21414602100 is 120641412.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61776 + ... + 215975.

It is an arithmetic number, because the mean of its divisors is an integer number (863901304).

Almost surely, 2^21414602100 is an apocalyptic number.

21414602100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21414602100 is an abundant number, since it is smaller than the sum of its proper divisors (40786291788).

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

21414602100 is a wasteful number, since it uses less digits than its factorization.

21414602100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278025 (or 278018 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The spelling of 21414602100 in words is "twenty-one billion, four hundred fourteen million, six hundred two thousand, one hundred".