2212643174338 has 16 divisors (see below), whose sum is σ = 3409452956664. Its totient is φ = 1076172652800.

The previous prime is 2212643174333. The next prime is 2212643174351. The reversal of 2212643174338 is 8334713462122.

It can be written as a sum of positive squares in 4 ways, for example, as 1947132787609 + 265510386729 = 1395397^2 + 515277^2 .

It is not an unprimeable number, because it can be changed into a prime (2212643174333) 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, 3126213 + ... + 3768088.

Almost surely, 2^{2212643174338} is an apocalyptic number.

2212643174338 is a deficient number, since it is larger than the sum of its proper divisors (1196809782326).

2212643174338 is a wasteful number, since it uses less digits than its factorization.

2212643174338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6898677.

The product of its digits is 1161216, while the sum is 46.

The spelling of 2212643174338 in words is "two trillion, two hundred twelve billion, six hundred forty-three million, one hundred seventy-four thousand, three hundred thirty-eight".