22111020109993 has 2 divisors, whose sum is σ = 22111020109994. Its totient is φ = 22111020109992.

The previous prime is 22111020109921. The next prime is 22111020110009. The reversal of 22111020109993 is 39990102011122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18782628535449 + 3328391574544 = 4333893^2 + 1824388^2 .

It is a cyclic number.

It is not a de Polignac number, because 22111020109993 - 2¹³ = 22111020101801 is a prime.

It is not a weakly prime, because it can be changed into another prime (22111020109193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055510054996 + 11055510054997.

It is an arithmetic number, because the mean of its divisors is an integer number (11055510054997).

Almost surely, 2^{22111020109993} is an apocalyptic number.

It is an amenable number.

22111020109993 is a deficient number, since it is larger than the sum of its proper divisors (1).

22111020109993 is an equidigital number, since it uses as much as digits as its factorization.

22111020109993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 40.

The spelling of 22111020109993 in words is "twenty-two trillion, one hundred eleven billion, twenty million, one hundred nine thousand, nine hundred ninety-three".