32122220992 has 56 divisors (see below), whose sum is σ = 67172811552. Its totient is φ = 15210624000.

The previous prime is 32122220989. The next prime is 32122220993. The reversal of 32122220992 is 29902222123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32122220993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40642 + ... + 256702.

It is an arithmetic number, because the mean of its divisors is an integer number (1199514492).

Almost surely, 2^32122220992 is an apocalyptic number.

32122220992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32122220992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33586405776).

32122220992 is an abundant number, since it is smaller than the sum of its proper divisors (35050590560).

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

32122220992 is a wasteful number, since it uses less digits than its factorization.

32122220992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216197 (or 216187 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 32122220992 in words is "thirty-two billion, one hundred twenty-two million, two hundred twenty thousand, nine hundred ninety-two".