2331221120 has 64 divisors (see below), whose sum is σ = 5815419840. Its totient is φ = 891939840.

The previous prime is 2331221117. The next prime is 2331221147. The reversal of 2331221120 is 211221332.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64466 + ... + 93905.

It is an arithmetic number, because the mean of its divisors is an integer number (90865935).

Almost surely, 2^2331221120 is an apocalyptic number.

2331221120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2331221120 is an abundant number, since it is smaller than the sum of its proper divisors (3484198720).

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

2331221120 is a wasteful number, since it uses less digits than its factorization.

2331221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158413 (or 158401 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2331221120 is about 48282.7207187002. The cubic root of 2331221120 is about 1325.9520619172.

Adding to 2331221120 its reverse (211221332), we get a palindrome (2542442452).

The spelling of 2331221120 in words is "two billion, three hundred thirty-one million, two hundred twenty-one thousand, one hundred twenty".