2221003811693 has 2 divisors, whose sum is σ = 2221003811694. Its totient is φ = 2221003811692.

The previous prime is 2221003811687. The next prime is 2221003811699. The reversal of 2221003811693 is 3961183001222.

It is a balanced prime because it is at equal distance from previous prime (2221003811687) and next prime (2221003811699).

It can be written as a sum of positive squares in only one way, i.e., 2044265129284 + 176738682409 = 1429778^2 + 420403^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221003811693 - 2²⁴ = 2220987034477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221003811699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110501905846 + 1110501905847.

It is an arithmetic number, because the mean of its divisors is an integer number (1110501905847).

Almost surely, 2^{2221003811693} is an apocalyptic number.

It is an amenable number.

2221003811693 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221003811693 is an equidigital number, since it uses as much as digits as its factorization.

2221003811693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 2221003811693 in words is "two trillion, two hundred twenty-one billion, three million, eight hundred eleven thousand, six hundred ninety-three".