2133211220 has 48 divisors (see below), whose sum is σ = 5181418368. Its totient is φ = 722570880.

The previous prime is 2133211211. The next prime is 2133211237. The reversal of 2133211220 is 221123312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80171 + ... + 103410.

It is an arithmetic number, because the mean of its divisors is an integer number (107946216).

Almost surely, 2^2133211220 is an apocalyptic number.

2133211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2133211220 is an abundant number, since it is smaller than the sum of its proper divisors (3048207148).

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

2133211220 is a wasteful number, since it uses less digits than its factorization.

2133211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183680 (or 183678 counting only the distinct ones).

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

The square root of 2133211220 is about 46186.6996006426. The cubic root of 2133211220 is about 1287.2946166874.

Adding to 2133211220 its reverse (221123312), we get a palindrome (2354334532).

The spelling of 2133211220 in words is "two billion, one hundred thirty-three million, two hundred eleven thousand, two hundred twenty".