2220213231 has 24 divisors (see below), whose sum is σ = 3333373680. Its totient is φ = 1422769536.

The previous prime is 2220213227. The next prime is 2220213241. The reversal of 2220213231 is 1323120222.

2220213231 is a `hidden beast` number, since 2 + 220 + 213 + 231 = 666.

It is not a de Polignac number, because 2220213231 - 2² = 2220213227 is a prime.

It is a super-2 number, since 2×2220213231² = 9858693582214918722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220213241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12526 + ... + 67803.

It is an arithmetic number, because the mean of its divisors is an integer number (138890570).

Almost surely, 2^2220213231 is an apocalyptic number.

2220213231 is a deficient number, since it is larger than the sum of its proper divisors (1113160449).

2220213231 is a wasteful number, since it uses less digits than its factorization.

2220213231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80455 (or 80452 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2220213231 is about 47119.1386911943. The cubic root of 2220213231 is about 1304.5625150893.

Adding to 2220213231 its reverse (1323120222), we get a palindrome (3543333453).

The spelling of 2220213231 in words is "two billion, two hundred twenty million, two hundred thirteen thousand, two hundred thirty-one".