100221323212 has 24 divisors (see below), whose sum is σ = 175591080000. Its totient is φ = 50052482256.

The previous prime is 100221323173. The next prime is 100221323299. The reversal of 100221323212 is 212323122001.

It is a self number, because there is not a number n which added to its sum of digits gives 100221323212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21217483 + ... + 21222205.

It is an arithmetic number, because the mean of its divisors is an integer number (7316295000).

Almost surely, 2^100221323212 is an apocalyptic number.

It is an amenable number.

100221323212 is a deficient number, since it is larger than the sum of its proper divisors (75369756788).

100221323212 is a wasteful number, since it uses less digits than its factorization.

100221323212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9765 (or 9763 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 100221323212 its reverse (212323122001), we get a palindrome (312544445213).

The spelling of 100221323212 in words is "one hundred billion, two hundred twenty-one million, three hundred twenty-three thousand, two hundred twelve".