2220503231 has 4 divisors (see below), whose sum is σ = 2221107552. Its totient is φ = 2219898912.

The previous prime is 2220503227. The next prime is 2220503251. The reversal of 2220503231 is 1323050222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2220503231 - 2² = 2220503227 is a prime.

It is a super-2 number, since 2×2220503231² = 9861269197762878722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220503251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296615 + ... + 304008.

It is an arithmetic number, because the mean of its divisors is an integer number (555276888).

Almost surely, 2^2220503231 is an apocalyptic number.

2220503231 is a deficient number, since it is larger than the sum of its proper divisors (604321).

2220503231 is an equidigital number, since it uses as much as digits as its factorization.

2220503231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604320.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2220503231 is about 47122.2158965387. The cubic root of 2220503231 is about 1304.6193124355.

Adding to 2220503231 its reverse (1323050222), we get a palindrome (3543553453).

The spelling of 2220503231 in words is "two billion, two hundred twenty million, five hundred three thousand, two hundred thirty-one".