2214551231 has 4 divisors (see below), whose sum is σ = 2220897000. Its totient is φ = 2208205464.

The previous prime is 2214551177. The next prime is 2214551233. The reversal of 2214551231 is 1321554122.

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 2214551231 - 2⁶ = 2214551167 is a prime.

It is a super-2 number, since 2×2214551231² = 9808474309447230722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2214551231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2214551233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3172361 + ... + 3173058.

It is an arithmetic number, because the mean of its divisors is an integer number (555224250).

Almost surely, 2^2214551231 is an apocalyptic number.

2214551231 is a deficient number, since it is larger than the sum of its proper divisors (6345769).

2214551231 is an equidigital number, since it uses as much as digits as its factorization.

2214551231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6345768.

The product of its digits is 2400, while the sum is 26.

The square root of 2214551231 is about 47059.0185936766. The cubic root of 2214551231 is about 1303.4526035513.

The spelling of 2214551231 in words is "two billion, two hundred fourteen million, five hundred fifty-one thousand, two hundred thirty-one".