221110222109999 has 2 divisors, whose sum is σ = 221110222110000. Its totient is φ = 221110222109998.

The previous prime is 221110222109951. The next prime is 221110222110053. The reversal of 221110222109999 is 999901222011122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221110222109999 - 2⁴⁰ = 220010710482223 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221110222109939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110555111054999 + 110555111055000.

It is an arithmetic number, because the mean of its divisors is an integer number (110555111055000).

Almost surely, 2^{221110222109999} is an apocalyptic number.

221110222109999 is a deficient number, since it is larger than the sum of its proper divisors (1).

221110222109999 is an equidigital number, since it uses as much as digits as its factorization.

221110222109999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 50.

The spelling of 221110222109999 in words is "two hundred twenty-one trillion, one hundred ten billion, two hundred twenty-two million, one hundred nine thousand, nine hundred ninety-nine".