2331220020 has 24 divisors (see below), whose sum is σ = 6527416224. Its totient is φ = 621658656.

The previous prime is 2331220019. The next prime is 2331220027. The reversal of 2331220020 is 200221332.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331220027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19426774 + ... + 19426893.

It is an arithmetic number, because the mean of its divisors is an integer number (271975676).

Almost surely, 2^2331220020 is an apocalyptic number.

2331220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2331220020 is an abundant number, since it is smaller than the sum of its proper divisors (4196196204).

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

2331220020 is a wasteful number, since it uses less digits than its factorization.

2331220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38853679 (or 38853677 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2331220020 is about 48282.7093274601. The cubic root of 2331220020 is about 1325.9518533645.

Adding to 2331220020 its reverse (200221332), we get a palindrome (2531441352).

The spelling of 2331220020 in words is "two billion, three hundred thirty-one million, two hundred twenty thousand, twenty".