100201221222 has 24 divisors (see below), whose sum is σ = 201282015816. Its totient is φ = 33254449344.

The previous prime is 100201221217. The next prime is 100201221233. The reversal of 100201221222 is 222122102001.

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 11 ways as a sum of consecutive naturals, for example, 155418 + ... + 473874.

It is an arithmetic number, because the mean of its divisors is an integer number (8386750659).

Almost surely, 2^100201221222 is an apocalyptic number.

100201221222 is an abundant number, since it is smaller than the sum of its proper divisors (101080794594).

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

100201221222 is an equidigital number, since it uses as much as digits as its factorization.

100201221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318920 (or 318691 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 100201221222 its reverse (222122102001), we get a palindrome (322323323223).

The spelling of 100201221222 in words is "one hundred billion, two hundred one million, two hundred twenty-one thousand, two hundred twenty-two".