22020011101997 has 2 divisors, whose sum is σ = 22020011101998. Its totient is φ = 22020011101996.

The previous prime is 22020011101967. The next prime is 22020011102071. The reversal of 22020011101997 is 79910111002022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18507943951396 + 3512067150601 = 4302086^2 + 1874051^2 .

It is a cyclic number.

It is not a de Polignac number, because 22020011101997 - 2¹⁰ = 22020011100973 is a prime.

It is a super-2 number, since 2×22020011101997² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22020011101967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010005550998 + 11010005550999.

It is an arithmetic number, because the mean of its divisors is an integer number (11010005550999).

Almost surely, 2^{22020011101997} is an apocalyptic number.

It is an amenable number.

22020011101997 is a deficient number, since it is larger than the sum of its proper divisors (1).

22020011101997 is an equidigital number, since it uses as much as digits as its factorization.

22020011101997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 35.

The spelling of 22020011101997 in words is "twenty-two trillion, twenty billion, eleven million, one hundred one thousand, nine hundred ninety-seven".