21022022110993 has 2 divisors, whose sum is σ = 21022022110994. Its totient is φ = 21022022110992.

The previous prime is 21022022110961. The next prime is 21022022111023. The reversal of 21022022110993 is 39901122022012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18088451314704 + 2933570796289 = 4253052^2 + 1712767^2 .

It is a cyclic number.

It is not a de Polignac number, because 21022022110993 - 2⁵ = 21022022110961 is a prime.

It is a super-2 number, since 2×21022022110993² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21022022114993) 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, 10511011055496 + 10511011055497.

It is an arithmetic number, because the mean of its divisors is an integer number (10511011055497).

Almost surely, 2^{21022022110993} is an apocalyptic number.

It is an amenable number.

21022022110993 is a deficient number, since it is larger than the sum of its proper divisors (1).

21022022110993 is an equidigital number, since it uses as much as digits as its factorization.

21022022110993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 21022022110993 in words is "twenty-one trillion, twenty-two billion, twenty-two million, one hundred ten thousand, nine hundred ninety-three".