212220302233 has 4 divisors (see below), whose sum is σ = 212780250640. Its totient is φ = 211660353828.

The previous prime is 212220302221. The next prime is 212220302257. The reversal of 212220302233 is 332203022212.

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 212220302233 - 2¹⁷ = 212220171161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212220302633) 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, 279973635 + ... + 279974392.

It is an arithmetic number, because the mean of its divisors is an integer number (53195062660).

Almost surely, 2^212220302233 is an apocalyptic number.

It is an amenable number.

212220302233 is a deficient number, since it is larger than the sum of its proper divisors (559948407).

212220302233 is an equidigital number, since it uses as much as digits as its factorization.

212220302233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559948406.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 212220302233 its reverse (332203022212), we get a palindrome (544423324445).

The spelling of 212220302233 in words is "two hundred twelve billion, two hundred twenty million, three hundred two thousand, two hundred thirty-three".