2120020220 has 24 divisors (see below), whose sum is σ = 4459863408. Its totient is φ = 846518400.

The previous prime is 2120020213. The next prime is 2120020249. The reversal of 2120020220 is 220200212.

It is a congruent number.

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, 81401 + ... + 104240.

It is an arithmetic number, because the mean of its divisors is an integer number (185827642).

Almost surely, 2^2120020220 is an apocalyptic number.

2120020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120020220 is an abundant number, since it is smaller than the sum of its proper divisors (2339843188).

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

2120020220 is a wasteful number, since it uses less digits than its factorization.

2120020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186221 (or 186219 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2120020220 is about 46043.6773075305. The cubic root of 2120020220 is about 1284.6357418586.

Adding to 2120020220 its reverse (220200212), we get a palindrome (2340220432).

The spelling of 2120020220 in words is "two billion, one hundred twenty million, twenty thousand, two hundred twenty".