901220321112 has 64 divisors (see below), whose sum is σ = 2319168430080. Its totient is φ = 291627752832.

The previous prime is 901220321093. The next prime is 901220321161. The reversal of 901220321112 is 211123022109.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 752088 + ... + 1538855.

It is an arithmetic number, because the mean of its divisors is an integer number (36237006720).

Almost surely, 2^901220321112 is an apocalyptic number.

It is an amenable number.

901220321112 is an abundant number, since it is smaller than the sum of its proper divisors (1417948108968).

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

901220321112 is a wasteful number, since it uses less digits than its factorization.

901220321112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291432 (or 2291428 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The spelling of 901220321112 in words is "nine hundred one billion, two hundred twenty million, three hundred twenty-one thousand, one hundred twelve".