2221240231 has 16 divisors (see below), whose sum is σ = 2611909440. Its totient is φ = 1849317120.

The previous prime is 2221240223. The next prime is 2221240237. The reversal of 2221240231 is 1320421222.

It is not a de Polignac number, because 2221240231 - 2³ = 2221240223 is a prime.

It is a super-2 number, since 2×2221240231² = 9867816327625866722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2221240199 and 2221240208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221240237) 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 15 ways as a sum of consecutive naturals, for example, 48825 + ... + 82621.

It is an arithmetic number, because the mean of its divisors is an integer number (163244340).

Almost surely, 2^2221240231 is an apocalyptic number.

2221240231 is a deficient number, since it is larger than the sum of its proper divisors (390669209).

2221240231 is a wasteful number, since it uses less digits than its factorization.

2221240231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34074.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2221240231 is about 47130.0353384124. The cubic root of 2221240231 is about 1304.7636337862.

Adding to 2221240231 its reverse (1320421222), we get a palindrome (3541661453).

The spelling of 2221240231 in words is "two billion, two hundred twenty-one million, two hundred forty thousand, two hundred thirty-one".