12001222101000 has 128 divisors (see below), whose sum is σ = 40847796063360. Its totient is φ = 2909387168000.

The previous prime is 12001222100947. The next prime is 12001222101067. The reversal of 12001222101000 is 10122210021.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 181803699 + ... + 181869698.

It is an arithmetic number, because the mean of its divisors is an integer number (319123406745).

Almost surely, 2^{12001222101000} is an apocalyptic number.

12001222101000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001222101000 is an abundant number, since it is smaller than the sum of its proper divisors (28846573962360).

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

12001222101000 is a wasteful number, since it uses less digits than its factorization.

12001222101000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363673432 (or 363673418 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12001222101000 its reverse (10122210021), we get a palindrome (12011344311021).

The spelling of 12001222101000 in words is "twelve trillion, one billion, two hundred twenty-two million, one hundred one thousand".