2221021110239 has 2 divisors, whose sum is σ = 2221021110240. Its totient is φ = 2221021110238.

The previous prime is 2221021110167. The next prime is 2221021110293. The reversal of 2221021110239 is 9320111201222.

Together with next prime (2221021110293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221021110239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221021610239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110510555119 + 1110510555120.

It is an arithmetic number, because the mean of its divisors is an integer number (1110510555120).

Almost surely, 2^{2221021110239} is an apocalyptic number.

2221021110239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221021110239 is an equidigital number, since it uses as much as digits as its factorization.

2221021110239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 2221021110239 in words is "two trillion, two hundred twenty-one billion, twenty-one million, one hundred ten thousand, two hundred thirty-nine".