2163351220 has 24 divisors (see below), whose sum is σ = 4544021664. Its totient is φ = 865153056.

The previous prime is 2163351163. The next prime is 2163351221. The reversal of 2163351220 is 221533612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163351221) 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, 117907 + ... + 135013.

It is an arithmetic number, because the mean of its divisors is an integer number (189334236).

Almost surely, 2^2163351220 is an apocalyptic number.

2163351220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2163351220 is an abundant number, since it is smaller than the sum of its proper divisors (2380670444).

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

2163351220 is a wasteful number, since it uses less digits than its factorization.

2163351220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23439 (or 23437 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2163351220 is about 46511.8395680068. The cubic root of 2163351220 is about 1293.3289856788.

Adding to 2163351220 its reverse (221533612), we get a palindrome (2384884832).

The spelling of 2163351220 in words is "two billion, one hundred sixty-three million, three hundred fifty-one thousand, two hundred twenty".