213641993222 has 80 divisors (see below), whose sum is σ = 395941830912. Its totient is φ = 86269795920.

The previous prime is 213641993209. The next prime is 213641993261. The reversal of 213641993222 is 222399146312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7385447 + ... + 7414317.

Almost surely, 2^213641993222 is an apocalyptic number.

213641993222 is a deficient number, since it is larger than the sum of its proper divisors (182299837690).

213641993222 is an equidigital number, since it uses as much as digits as its factorization.

213641993222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28991 (or 28970 counting only the distinct ones).

The product of its digits is 279936, while the sum is 44.

The spelling of 213641993222 in words is "two hundred thirteen billion, six hundred forty-one million, nine hundred ninety-three thousand, two hundred twenty-two".