220901990012 has 24 divisors (see below), whose sum is σ = 421755656112. Its totient is φ = 100401977600.

The previous prime is 220901989999. The next prime is 220901990017. The reversal of 220901990012 is 210099109022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220901990017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375428 + ... + 763380.

It is an arithmetic number, because the mean of its divisors is an integer number (17573152338).

Almost surely, 2^220901990012 is an apocalyptic number.

220901990012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220901990012 is a deficient number, since it is larger than the sum of its proper divisors (200853666100).

220901990012 is a wasteful number, since it uses less digits than its factorization.

220901990012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400909 (or 400907 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 35.

It can be divided in two parts, 22090 and 1990012, that added together give a palindrome (2012102).

The spelling of 220901990012 in words is "two hundred twenty billion, nine hundred one million, nine hundred ninety thousand, twelve".