2211423231 has 8 divisors (see below), whose sum is σ = 2958169984. Its totient is φ = 1469479320.

The previous prime is 2211423211. The next prime is 2211423293. The reversal of 2211423231 is 1323241122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2211423231 - 2⁷ = 2211423103 is a prime.

It is a super-2 number, since 2×2211423231² = 9780785413212958722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211423198 and 2211423207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211423211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1199635 + ... + 1201476.

It is an arithmetic number, because the mean of its divisors is an integer number (369771248).

Almost surely, 2^2211423231 is an apocalyptic number.

2211423231 is a deficient number, since it is larger than the sum of its proper divisors (746746753).

2211423231 is a wasteful number, since it uses less digits than its factorization.

2211423231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2401421.

The product of its digits is 576, while the sum is 21.

The square root of 2211423231 is about 47025.7719872837. The cubic root of 2211423231 is about 1302.8386159643.

Adding to 2211423231 its reverse (1323241122), we get a palindrome (3534664353).

The spelling of 2211423231 in words is "two billion, two hundred eleven million, four hundred twenty-three thousand, two hundred thirty-one".