2221434231 has 16 divisors (see below), whose sum is σ = 3174226944. Its totient is φ = 1378279584.

The previous prime is 2221434227. The next prime is 2221434233. The reversal of 2221434231 is 1324341222.

It is a happy number.

It is not a de Polignac number, because 2221434231 - 2² = 2221434227 is a prime.

It is a super-2 number, since 2×2221434231² = 9869540085317122722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221434233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 432511 + ... + 437616.

It is an arithmetic number, because the mean of its divisors is an integer number (198389184).

Almost surely, 2^2221434231 is an apocalyptic number.

2221434231 is a deficient number, since it is larger than the sum of its proper divisors (952792713).

2221434231 is a wasteful number, since it uses less digits than its factorization.

2221434231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870190.

The product of its digits is 2304, while the sum is 24.

The square root of 2221434231 is about 47132.0934290002. The cubic root of 2221434231 is about 1304.8016180877.

Adding to 2221434231 its reverse (1324341222), we get a palindrome (3545775453).

The spelling of 2221434231 in words is "two billion, two hundred twenty-one million, four hundred thirty-four thousand, two hundred thirty-one".