221111221000093 has 2 divisors, whose sum is σ = 221111221000094. Its totient is φ = 221111221000092.

The previous prime is 221111221000081. The next prime is 221111221000121. The reversal of 221111221000093 is 390000122111122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220971257470404 + 139963529689 = 14865102^2 + 374117^2 .

It is a cyclic number.

It is not a de Polignac number, because 221111221000093 - 2²⁵ = 221111187445661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221111221000013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110555610500046 + 110555610500047.

It is an arithmetic number, because the mean of its divisors is an integer number (110555610500047).

Almost surely, 2^{221111221000093} is an apocalyptic number.

It is an amenable number.

221111221000093 is a deficient number, since it is larger than the sum of its proper divisors (1).

221111221000093 is an equidigital number, since it uses as much as digits as its factorization.

221111221000093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 221111221000093 in words is "two hundred twenty-one trillion, one hundred eleven billion, two hundred twenty-one million, ninety-three", and thus it is an aban number.