2220011231 has 6 divisors (see below), whose sum is σ = 2258279832. Its totient is φ = 2182380500.

The previous prime is 2220011203. The next prime is 2220011273. The reversal of 2220011231 is 1321100222.

It is a happy number.

It is not a de Polignac number, because 2220011231 - 2¹⁰ = 2220010207 is a prime.

It is a super-2 number, since 2×2220011231² = 9856899731532270722, 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 (2220016231) 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 5 ways as a sum of consecutive naturals, for example, 315395 + ... + 322356.

It is an arithmetic number, because the mean of its divisors is an integer number (376379972).

Almost surely, 2^2220011231 is an apocalyptic number.

2220011231 is a deficient number, since it is larger than the sum of its proper divisors (38268601).

2220011231 is an frugal number, since it uses more digits than its factorization.

2220011231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637869 (or 637810 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2220011231 is about 47116.9951397582. The cubic root of 2220011231 is about 1304.5229498775.

Adding to 2220011231 its reverse (1321100222), we get a palindrome (3541111453).

The spelling of 2220011231 in words is "two billion, two hundred twenty million, eleven thousand, two hundred thirty-one".