40120202100 has 72 divisors (see below), whose sum is σ = 126633957408. Its totient is φ = 9726108800.

The previous prime is 40120202071. The next prime is 40120202131. The reversal of 40120202100 is 120202104.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 6075519 + ... + 6082118.

It is an arithmetic number, because the mean of its divisors is an integer number (1758804964).

Almost surely, 2^40120202100 is an apocalyptic number.

It is an amenable number.

40120202100 is an abundant number, since it is smaller than the sum of its proper divisors (86513755308).

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

40120202100 is a wasteful number, since it uses less digits than its factorization.

40120202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12157665 (or 12157658 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 40120202100 its reverse (120202104), we get a palindrome (40240404204).

The spelling of 40120202100 in words is "forty billion, one hundred twenty million, two hundred two thousand, one hundred".