2221003212331 has 4 divisors (see below), whose sum is σ = 2221011916200. Its totient is φ = 2220994508464.

The previous prime is 2221003212319. The next prime is 2221003212349. The reversal of 2221003212331 is 1332123001222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2221003212331 - 2²⁹ = 2220466341419 is a prime.

It is a super-2 number, since 2×2221003212331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221003212431) 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, 3957241 + ... + 4483498.

It is an arithmetic number, because the mean of its divisors is an integer number (555252979050).

Almost surely, 2^{2221003212331} is an apocalyptic number.

2221003212331 is a deficient number, since it is larger than the sum of its proper divisors (8703869).

2221003212331 is an equidigital number, since it uses as much as digits as its factorization.

2221003212331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8703868.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2221003212331 its reverse (1332123001222), we get a palindrome (3553126213553).

The spelling of 2221003212331 in words is "two trillion, two hundred twenty-one billion, three million, two hundred twelve thousand, three hundred thirty-one".