22019046912 has 160 divisors (see below), whose sum is σ = 66941028000. Its totient is φ = 7141146624.

The previous prime is 22019046911. The next prime is 22019047019. The reversal of 22019046912 is 21964091022.

22019046912 is a `hidden beast` number, since 2 + 2 + 0 + 190 + 469 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22019046911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489964 + ... + 533012.

It is an arithmetic number, because the mean of its divisors is an integer number (418381425).

Almost surely, 2^22019046912 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 22019046912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33470514000).

22019046912 is an abundant number, since it is smaller than the sum of its proper divisors (44921981088).

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

22019046912 is an equidigital number, since it uses as much as digits as its factorization.

22019046912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43113 (or 43091 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 22019046912 in words is "twenty-two billion, nineteen million, forty-six thousand, nine hundred twelve".