100405322012 has 12 divisors (see below), whose sum is σ = 175713617520. Its totient is φ = 50201431296.

The previous prime is 100405321927. The next prime is 100405322023. The reversal of 100405322012 is 210223504001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109568 + ... + 461319.

It is an arithmetic number, because the mean of its divisors is an integer number (14642801460).

Almost surely, 2^100405322012 is an apocalyptic number.

It is an amenable number.

100405322012 is a deficient number, since it is larger than the sum of its proper divisors (75308295508).

100405322012 is a wasteful number, since it uses less digits than its factorization.

100405322012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614860 (or 614858 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 100405322012 its reverse (210223504001), we get a palindrome (310628826013).

The spelling of 100405322012 in words is "one hundred billion, four hundred five million, three hundred twenty-two thousand, twelve".