2222220231 has 32 divisors (see below), whose sum is σ = 4104537600. Its totient is φ = 1154399040.

The previous prime is 2222220227. The next prime is 2222220241. The reversal of 2222220231 is 1320222222.

It is not a de Polignac number, because 2222220231 - 2² = 2222220227 is a prime.

It is a super-2 number, since 2×2222220231² = 9876525510131386722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222220211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 532366 + ... + 536523.

It is an arithmetic number, because the mean of its divisors is an integer number (128266800).

Almost surely, 2^2222220231 is an apocalyptic number.

2222220231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2222220231 is a deficient number, since it is larger than the sum of its proper divisors (1882317369).

2222220231 is a wasteful number, since it uses less digits than its factorization.

2222220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068916 (or 1068910 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2222220231 is about 47140.4309589974. The cubic root of 2222220231 is about 1304.9554906209.

Adding to 2222220231 its reverse (1320222222), we get a palindrome (3542442453).

The spelling of 2222220231 in words is "two billion, two hundred twenty-two million, two hundred twenty thousand, two hundred thirty-one".