2212111221233 has 4 divisors (see below), whose sum is σ = 2212131429888. Its totient is φ = 2212091012580.

The previous prime is 2212111221169. The next prime is 2212111221253. The reversal of 2212111221233 is 3321221112122.

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 2212111221233 - 2⁶ = 2212111221169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2212111221199 and 2212111221208.

It is not an unprimeable number, because it can be changed into a prime (2212111221253) 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, 9939233 + ... + 10159358.

It is an arithmetic number, because the mean of its divisors is an integer number (553032857472).

Almost surely, 2^{2212111221233} is an apocalyptic number.

It is an amenable number.

2212111221233 is a deficient number, since it is larger than the sum of its proper divisors (20208655).

2212111221233 is a wasteful number, since it uses less digits than its factorization.

2212111221233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20208654.

The product of its digits is 576, while the sum is 23.

Adding to 2212111221233 its reverse (3321221112122), we get a palindrome (5533332333355).

The spelling of 2212111221233 in words is "two trillion, two hundred twelve billion, one hundred eleven million, two hundred twenty-one thousand, two hundred thirty-three".