3221221112032 has 144 divisors (see below), whose sum is σ = 8060851572480. Its totient is φ = 1252989561600.

The previous prime is 3221221112009. The next prime is 3221221112033. The reversal of 3221221112032 is 2302111221223.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 3221221111994 and 3221221112012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221221112033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10525657 + ... + 10827367.

It is an arithmetic number, because the mean of its divisors is an integer number (55978135920).

Almost surely, 2^{3221221112032} is an apocalyptic number.

3221221112032 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 3221221112032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4030425786240).

3221221112032 is an abundant number, since it is smaller than the sum of its proper divisors (4839630460448).

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

3221221112032 is a wasteful number, since it uses less digits than its factorization.

3221221112032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302365 (or 302350 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 3221221112032 its reverse (2302111221223), we get a palindrome (5523332333255).

The spelling of 3221221112032 in words is "three trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred twelve thousand, thirty-two".