100212212012 has 48 divisors (see below), whose sum is σ = 204796771200. Its totient is φ = 42422146560.

The previous prime is 100212212011. The next prime is 100212212021. The reversal of 100212212012 is 210212212001.

It is not an unprimeable number, because it can be changed into a prime (100212212011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 966533 + ... + 1065180.

It is an arithmetic number, because the mean of its divisors is an integer number (4266599400).

Almost surely, 2^100212212012 is an apocalyptic number.

It is an amenable number.

100212212012 is an abundant number, since it is smaller than the sum of its proper divisors (104584559188).

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

100212212012 is a wasteful number, since it uses less digits than its factorization.

100212212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031806 (or 2031804 counting only the distinct ones).

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

Adding to 100212212012 its reverse (210212212001), we get a palindrome (310424424013).

The spelling of 100212212012 in words is "one hundred billion, two hundred twelve million, two hundred twelve thousand, twelve".