2220040231 has 4 divisors (see below), whose sum is σ = 2291654464. Its totient is φ = 2148426000.

The previous prime is 2220040213. The next prime is 2220040241. The reversal of 2220040231 is 1320400222.

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 2220040231 - 2²⁵ = 2186485799 is a prime.

It is a super-2 number, since 2×2220040231² = 9857157254517066722, 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 (2220040211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35807070 + ... + 35807131.

It is an arithmetic number, because the mean of its divisors is an integer number (572913616).

Almost surely, 2^2220040231 is an apocalyptic number.

2220040231 is a deficient number, since it is larger than the sum of its proper divisors (71614233).

2220040231 is an equidigital number, since it uses as much as digits as its factorization.

2220040231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71614232.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2220040231 is about 47117.3028833358. The cubic root of 2220040231 is about 1304.5286301792.

Adding to 2220040231 its reverse (1320400222), we get a palindrome (3540440453).

The spelling of 2220040231 in words is "two billion, two hundred twenty million, forty thousand, two hundred thirty-one".