2221311210011 has 4 divisors (see below), whose sum is σ = 2224934883072. Its totient is φ = 2217687536952.

The previous prime is 2221311209927. The next prime is 2221311210017. The reversal of 2221311210011 is 1100121131222.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221311210011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221311210017) 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, 1811835611 + ... + 1811836836.

It is an arithmetic number, because the mean of its divisors is an integer number (556233720768).

Almost surely, 2^{2221311210011} is an apocalyptic number.

2221311210011 is a deficient number, since it is larger than the sum of its proper divisors (3623673061).

2221311210011 is an equidigital number, since it uses as much as digits as its factorization.

2221311210011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623673060.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 2221311210011 its reverse (1100121131222), we get a palindrome (3321432341233).

The spelling of 2221311210011 in words is "two trillion, two hundred twenty-one billion, three hundred eleven million, two hundred ten thousand, eleven".