2213732218 has 8 divisors (see below), whose sum is σ = 3495366720. Its totient is φ = 1048609980.

The previous prime is 2213732207. The next prime is 2213732219. The reversal of 2213732218 is 8122373122.

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

It is a super-2 number, since 2×2213732218² = 9801220666022399048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2213732218.

It is not an unprimeable number, because it can be changed into a prime (2213732219) 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, 29128018 + ... + 29128093.

It is an arithmetic number, because the mean of its divisors is an integer number (436920840).

Almost surely, 2^2213732218 is an apocalyptic number.

2213732218 is a deficient number, since it is larger than the sum of its proper divisors (1281634502).

2213732218 is a wasteful number, since it uses less digits than its factorization.

2213732218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58256132.

The product of its digits is 8064, while the sum is 31.

The square root of 2213732218 is about 47050.3158119050. The cubic root of 2213732218 is about 1303.2918973635.

The spelling of 2213732218 in words is "two billion, two hundred thirteen million, seven hundred thirty-two thousand, two hundred eighteen".