222121323233 has 4 divisors (see below), whose sum is σ = 222139834560. Its totient is φ = 222102811908.

The previous prime is 222121323197. The next prime is 222121323257. The reversal of 222121323233 is 332323121222.

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, and also an emirpimes, since its reverse is a distinct semiprime: 332323121222 = 2 ⋅166161560611.

It is a cyclic number.

It is not a de Polignac number, because 222121323233 - 2⁶ = 222121323169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222121320233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9237653 + ... + 9261666.

It is an arithmetic number, because the mean of its divisors is an integer number (55534958640).

Almost surely, 2^222121323233 is an apocalyptic number.

It is an amenable number.

222121323233 is a deficient number, since it is larger than the sum of its proper divisors (18511327).

222121323233 is a wasteful number, since it uses less digits than its factorization.

222121323233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18511326.

The product of its digits is 5184, while the sum is 26.

Adding to 222121323233 its reverse (332323121222), we get a palindrome (554444444455).

The spelling of 222121323233 in words is "two hundred twenty-two billion, one hundred twenty-one million, three hundred twenty-three thousand, two hundred thirty-three".