212122202323 has 4 divisors (see below), whose sum is σ = 214104652920. Its totient is φ = 210139751728.

The previous prime is 212122202317. The next prime is 212122202393. The reversal of 212122202323 is 323202221212.

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

It is a cyclic number.

It is not a de Polignac number, because 212122202323 - 2³⁷ = 74683248851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212122202294 and 212122202303.

It is not an unprimeable number, because it can be changed into a prime (212122202393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 991225138 + ... + 991225351.

It is an arithmetic number, because the mean of its divisors is an integer number (53526163230).

Almost surely, 2^212122202323 is an apocalyptic number.

212122202323 is a deficient number, since it is larger than the sum of its proper divisors (1982450597).

212122202323 is a wasteful number, since it uses less digits than its factorization.

212122202323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982450596.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 212122202323 its reverse (323202221212), we get a palindrome (535324423535).

The spelling of 212122202323 in words is "two hundred twelve billion, one hundred twenty-two million, two hundred two thousand, three hundred twenty-three".