2221231340233 has 4 divisors (see below), whose sum is σ = 2221258464720. Its totient is φ = 2221204215748.

The previous prime is 2221231340221. The next prime is 2221231340281. The reversal of 2221231340233 is 3320431321222.

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 2221231340233 - 2³³ = 2212641405641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221231340833) 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, 13439035 + ... + 13603312.

It is an arithmetic number, because the mean of its divisors is an integer number (555314616180).

Almost surely, 2^{2221231340233} is an apocalyptic number.

It is an amenable number.

2221231340233 is a deficient number, since it is larger than the sum of its proper divisors (27124487).

2221231340233 is an equidigital number, since it uses as much as digits as its factorization.

2221231340233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27124486.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 2221231340233 its reverse (3320431321222), we get a palindrome (5541662661455).

The spelling of 2221231340233 in words is "two trillion, two hundred twenty-one billion, two hundred thirty-one million, three hundred forty thousand, two hundred thirty-three".