212222133311 has 4 divisors (see below), whose sum is σ = 213227925624. Its totient is φ = 211216341000.

The previous prime is 212222133271. The next prime is 212222133337. The reversal of 212222133311 is 113331222212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212222133311 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 (212222133511) 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, 502895840 + ... + 502896261.

It is an arithmetic number, because the mean of its divisors is an integer number (53306981406).

Almost surely, 2^212222133311 is an apocalyptic number.

212222133311 is a deficient number, since it is larger than the sum of its proper divisors (1005792313).

212222133311 is a wasteful number, since it uses less digits than its factorization.

212222133311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005792312.

The product of its digits is 864, while the sum is 23.

Adding to 212222133311 its reverse (113331222212), we get a palindrome (325553355523).

The spelling of 212222133311 in words is "two hundred twelve billion, two hundred twenty-two million, one hundred thirty-three thousand, three hundred eleven".