401912922112 has 128 divisors (see below), whose sum is σ = 868459334400. Its totient is φ = 184895668224.

The previous prime is 401912922109. The next prime is 401912922121. The reversal of 401912922112 is 211229219104.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147815089 + ... + 147817807.

It is an arithmetic number, because the mean of its divisors is an integer number (6784838550).

Almost surely, 2^401912922112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401912922112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434229667200).

401912922112 is an abundant number, since it is smaller than the sum of its proper divisors (466546412288).

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

401912922112 is an equidigital number, since it uses as much as digits as its factorization.

401912922112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109 (or 3081 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 401912922112 in words is "four hundred one billion, nine hundred twelve million, nine hundred twenty-two thousand, one hundred twelve".