2216431137 has 4 divisors (see below), whose sum is σ = 2955241520. Its totient is φ = 1477620756.

The previous prime is 2216431099. The next prime is 2216431159. The reversal of 2216431137 is 7311346122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2216431137 - 2¹⁰ = 2216430113 is a prime.

It is a super-2 number, since 2×2216431137² = 9825133970126225538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2216431237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369405187 + ... + 369405192.

It is an arithmetic number, because the mean of its divisors is an integer number (738810380).

Almost surely, 2^2216431137 is an apocalyptic number.

It is an amenable number.

2216431137 is a deficient number, since it is larger than the sum of its proper divisors (738810383).

2216431137 is an equidigital number, since it uses as much as digits as its factorization.

2216431137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738810382.

The product of its digits is 6048, while the sum is 30.

The square root of 2216431137 is about 47078.9882750256. The cubic root of 2216431137 is about 1303.8213276672.

Adding to 2216431137 its reverse (7311346122), we get a palindrome (9527777259).

It can be divided in two parts, 22164 and 31137, that added together give a triangular number (53301 = T₃₂₆).

The spelling of 2216431137 in words is "two billion, two hundred sixteen million, four hundred thirty-one thousand, one hundred thirty-seven".