2312220132 has 72 divisors (see below), whose sum is σ = 6014264256. Its totient is φ = 748471104.

The previous prime is 2312220121. The next prime is 2312220139. The reversal of 2312220132 is 2310222132.

2312220132 is a `hidden beast` number, since 2 + 312 + 220 + 132 = 666.

2312220132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (2312220139) 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, 860463 + ... + 863145.

It is an arithmetic number, because the mean of its divisors is an integer number (83531448).

Almost surely, 2^2312220132 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 2312220132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3007132128).

2312220132 is an abundant number, since it is smaller than the sum of its proper divisors (3702044124).

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

2312220132 is a wasteful number, since it uses less digits than its factorization.

2312220132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377 (or 3372 counting only the distinct ones).

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

The square root of 2312220132 is about 48085.5501372294. The cubic root of 2312220132 is about 1322.3397689197.

Adding to 2312220132 its reverse (2310222132), we get a palindrome (4622442264).

The spelling of 2312220132 in words is "two billion, three hundred twelve million, two hundred twenty thousand, one hundred thirty-two".