212022323311 has 4 divisors (see below), whose sum is σ = 212368200472. Its totient is φ = 211676446152.

The previous prime is 212022323297. The next prime is 212022323329. The reversal of 212022323311 is 113323220212.

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 212022323311 - 2³¹ = 209874839663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212022323911) 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, 172937661 + ... + 172938886.

It is an arithmetic number, because the mean of its divisors is an integer number (53092050118).

Almost surely, 2^212022323311 is an apocalyptic number.

212022323311 is a deficient number, since it is larger than the sum of its proper divisors (345877161).

212022323311 is an equidigital number, since it uses as much as digits as its factorization.

212022323311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345877160.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212022323311 its reverse (113323220212), we get a palindrome (325345543523).

The spelling of 212022323311 in words is "two hundred twelve billion, twenty-two million, three hundred twenty-three thousand, three hundred eleven".