100012001222 has 64 divisors (see below), whose sum is σ = 183368448000. Its totient is φ = 39957442560.

The previous prime is 100012001207. The next prime is 100012001231. The reversal of 100012001222 is 222100210001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8712947 + ... + 8724417.

It is an arithmetic number, because the mean of its divisors is an integer number (2865132000).

Almost surely, 2^100012001222 is an apocalyptic number.

100012001222 is a deficient number, since it is larger than the sum of its proper divisors (83356446778).

100012001222 is a wasteful number, since it uses less digits than its factorization.

100012001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12021.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 100012001222 its reverse (222100210001), we get a palindrome (322112211223).

The spelling of 100012001222 in words is "one hundred billion, twelve million, one thousand, two hundred twenty-two".