212011212233 has 4 divisors (see below), whose sum is σ = 212012195460. Its totient is φ = 212010229008.

The previous prime is 212011212229. The next prime is 212011212247. The reversal of 212011212233 is 332212110212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 89872844944 + 122138367289 = 299788^2 + 349483^2 .

It is a cyclic number.

It is not a de Polignac number, because 212011212233 - 2² = 212011212229 is a prime.

It is a super-2 number, since 2×212011212233² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212011212533) 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, 12578 + ... + 651291.

It is an arithmetic number, because the mean of its divisors is an integer number (53003048865).

Almost surely, 2^212011212233 is an apocalyptic number.

It is an amenable number.

212011212233 is a deficient number, since it is larger than the sum of its proper divisors (983227).

212011212233 is an equidigital number, since it uses as much as digits as its factorization.

212011212233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983226.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 212011212233 its reverse (332212110212), we get a palindrome (544223322445).

The spelling of 212011212233 in words is "two hundred twelve billion, eleven million, two hundred twelve thousand, two hundred thirty-three".