211320222312 has 16 divisors (see below), whose sum is σ = 528300555840. Its totient is φ = 70440074096.

The previous prime is 211320222301. The next prime is 211320222349. The reversal of 211320222312 is 213222023112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4402504608 + ... + 4402504655.

It is an arithmetic number, because the mean of its divisors is an integer number (33018784740).

Almost surely, 2^211320222312 is an apocalyptic number.

It is an amenable number.

211320222312 is an abundant number, since it is smaller than the sum of its proper divisors (316980333528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211320222312 is a wasteful number, since it uses less digits than its factorization.

211320222312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8805009272 (or 8805009268 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 211320222312 its reverse (213222023112), we get a palindrome (424542245424).

The spelling of 211320222312 in words is "two hundred eleven billion, three hundred twenty million, two hundred twenty-two thousand, three hundred twelve".