2221311033013 has 4 divisors (see below), whose sum is σ = 2221533775468. Its totient is φ = 2221088290560.

The previous prime is 2221311032999. The next prime is 2221311033049. The reversal of 2221311033013 is 3103301131222.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1341133073329 + 880177959684 = 1158073^2 + 938178^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221311033013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221311033083) 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, 111356268 + ... + 111376213.

It is an arithmetic number, because the mean of its divisors is an integer number (555383443867).

Almost surely, 2^{2221311033013} is an apocalyptic number.

It is an amenable number.

2221311033013 is a deficient number, since it is larger than the sum of its proper divisors (222742455).

2221311033013 is an equidigital number, since it uses as much as digits as its factorization.

2221311033013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222742454.

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

Adding to 2221311033013 its reverse (3103301131222), we get a palindrome (5324612164235).

The spelling of 2221311033013 in words is "two trillion, two hundred twenty-one billion, three hundred eleven million, thirty-three thousand, thirteen".