2312221032 has 128 divisors (see below), whose sum is σ = 7028208000. Its totient is φ = 698526720.

The previous prime is 2312221019. The next prime is 2312221049. The reversal of 2312221032 is 2301222132.

It is a super-2 number, since 2×2312221032² = 10692732201646290048, which contains 22 as substring.

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 = 2312220996 and 2312221014.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 884944 + ... + 887552.

It is an arithmetic number, because the mean of its divisors is an integer number (54907875).

Almost surely, 2^2312221032 is an apocalyptic number.

2312221032 is a gapful number since it is divisible by the number (22) 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 2312221032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3514104000).

2312221032 is an abundant number, since it is smaller than the sum of its proper divisors (4715986968).

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

2312221032 is a wasteful number, since it uses less digits than its factorization.

2312221032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3008 (or 2998 counting only the distinct ones).

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

The square root of 2312221032 is about 48085.5594955492. The cubic root of 2312221032 is about 1322.3399404873.

Adding to 2312221032 its reverse (2301222132), we get a palindrome (4613443164).

The spelling of 2312221032 in words is "two billion, three hundred twelve million, two hundred twenty-one thousand, thirty-two".