338218222 has 4 divisors (see below), whose sum is σ = 507327336. Its totient is φ = 169109110.

The previous prime is 338218219. The next prime is 338218241. The reversal of 338218222 is 222812833.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×338218222² = 228783131385682568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84554554 + ... + 84554557.

It is an arithmetic number, because the mean of its divisors is an integer number (126831834).

Almost surely, 2^338218222 is an apocalyptic number.

338218222 is a deficient number, since it is larger than the sum of its proper divisors (169109114).

338218222 is a wasteful number, since it uses less digits than its factorization.

338218222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169109113.

The product of its digits is 9216, while the sum is 31.

The square root of 338218222 is about 18390.7102092334. The cubic root of 338218222 is about 696.7318552992.

The spelling of 338218222 in words is "three hundred thirty-eight million, two hundred eighteen thousand, two hundred twenty-two".