212022233 has 4 divisors (see below), whose sum is σ = 212172240. Its totient is φ = 211872228.

The previous prime is 212022229. The next prime is 212022241. The reversal of 212022233 is 332220212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212022233 - 2² = 212022229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212022263) 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, 72863 + ... + 75716.

It is an arithmetic number, because the mean of its divisors is an integer number (53043060).

Almost surely, 2^212022233 is an apocalyptic number.

It is an amenable number.

212022233 is a deficient number, since it is larger than the sum of its proper divisors (150007).

212022233 is a wasteful number, since it uses less digits than its factorization.

212022233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150006.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 212022233 is about 14560.9832428995. The cubic root of 212022233 is about 596.2940392941.

Adding to 212022233 its reverse (332220212), we get a palindrome (544242445).

The spelling of 212022233 in words is "two hundred twelve million, twenty-two thousand, two hundred thirty-three".