212223322131 has 16 divisors (see below), whose sum is σ = 290636490144. Its totient is φ = 137646825984.

The previous prime is 212223322049. The next prime is 212223322177. The reversal of 212223322131 is 131223322212.

It is not a de Polignac number, because 212223322131 - 2²⁹ = 211686451219 is a prime.

It is a super-2 number, since 2×212223322131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212223322631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1366315 + ... + 1513691.

It is an arithmetic number, because the mean of its divisors is an integer number (18164780634).

Almost surely, 2^212223322131 is an apocalyptic number.

212223322131 is a deficient number, since it is larger than the sum of its proper divisors (78413168013).

212223322131 is a wasteful number, since it uses less digits than its factorization.

212223322131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160390.

The product of its digits is 1728, while the sum is 24.

Adding to 212223322131 its reverse (131223322212), we get a palindrome (343446644343).

The spelling of 212223322131 in words is "two hundred twelve billion, two hundred twenty-three million, three hundred twenty-two thousand, one hundred thirty-one".