2143120220 has 24 divisors (see below), whose sum is σ = 4696229664. Its totient is φ = 819976256.

The previous prime is 2143120207. The next prime is 2143120247. The reversal of 2143120220 is 220213412.

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, 2329019 + ... + 2329938.

It is an arithmetic number, because the mean of its divisors is an integer number (195676236).

Almost surely, 2^2143120220 is an apocalyptic number.

2143120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2143120220 is an abundant number, since it is smaller than the sum of its proper divisors (2553109444).

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

2143120220 is a wasteful number, since it uses less digits than its factorization.

2143120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4658989 (or 4658987 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2143120220 is about 46293.8464593298. The cubic root of 2143120220 is about 1289.2847466143.

Adding to 2143120220 its reverse (220213412), we get a palindrome (2363333632).

The spelling of 2143120220 in words is "two billion, one hundred forty-three million, one hundred twenty thousand, two hundred twenty".