32001312222 has 64 divisors (see below), whose sum is σ = 77601024000. Its totient is φ = 9694607040.

The previous prime is 32001312221. The next prime is 32001312253. The reversal of 32001312222 is 22221310023.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 32001312195 and 32001312204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32001312221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3231763 + ... + 3241649.

It is an arithmetic number, because the mean of its divisors is an integer number (1212516000).

Almost surely, 2^32001312222 is an apocalyptic number.

32001312222 is an abundant number, since it is smaller than the sum of its proper divisors (45599711778).

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

32001312222 is a wasteful number, since it uses less digits than its factorization.

32001312222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15358 (or 15352 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 32001312222 its reverse (22221310023), we get a palindrome (54222622245).

The spelling of 32001312222 in words is "thirty-two billion, one million, three hundred twelve thousand, two hundred twenty-two".