2221131003331 has 4 divisors (see below), whose sum is σ = 2221139293912. Its totient is φ = 2221122712752.

The previous prime is 2221131003241. The next prime is 2221131003391. The reversal of 2221131003331 is 1333001311222.

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 2221131003331 - 2¹⁵ = 2221130970563 is a prime.

It is a super-3 number, since 3×2221131003331³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221131003391) 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, 3729525 + ... + 4283878.

It is an arithmetic number, because the mean of its divisors is an integer number (555284823478).

Almost surely, 2^{2221131003331} is an apocalyptic number.

2221131003331 is a deficient number, since it is larger than the sum of its proper divisors (8290581).

2221131003331 is an equidigital number, since it uses as much as digits as its factorization.

2221131003331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8290580.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2221131003331 its reverse (1333001311222), we get a palindrome (3554132314553).

The spelling of 2221131003331 in words is "two trillion, two hundred twenty-one billion, one hundred thirty-one million, three thousand, three hundred thirty-one".