22110193821491 has 2 divisors, whose sum is σ = 22110193821492. Its totient is φ = 22110193821490.

The previous prime is 22110193821431. The next prime is 22110193821497. The reversal of 22110193821491 is 19412839101122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22110193821491 - 2¹⁴ = 22110193805107 is a prime.

It is not a weakly prime, because it can be changed into another prime (22110193821497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055096910745 + 11055096910746.

It is an arithmetic number, because the mean of its divisors is an integer number (11055096910746).

Almost surely, 2^{22110193821491} is an apocalyptic number.

22110193821491 is a deficient number, since it is larger than the sum of its proper divisors (1).

22110193821491 is an equidigital number, since it uses as much as digits as its factorization.

22110193821491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 44.

The spelling of 22110193821491 in words is "twenty-two trillion, one hundred ten billion, one hundred ninety-three million, eight hundred twenty-one thousand, four hundred ninety-one".