20212022110993 has 4 divisors (see below), whose sum is σ = 20420393473060. Its totient is φ = 20003650748928.

The previous prime is 20212022110919. The next prime is 20212022111027. The reversal of 20212022110993 is 39901122021202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12798420390144 + 7413601720849 = 3577488^2 + 2722793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20212022110993 is a prime.

It is a super-2 number, since 2×20212022110993² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212022180993) 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 in 3 ways as a sum of consecutive naturals, for example, 104185680888 + ... + 104185681081.

It is an arithmetic number, because the mean of its divisors is an integer number (5105098368265).

Almost surely, 2^{20212022110993} is an apocalyptic number.

It is an amenable number.

20212022110993 is a deficient number, since it is larger than the sum of its proper divisors (208371362067).

20212022110993 is an equidigital number, since it uses as much as digits as its factorization.

20212022110993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208371362066.

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

The spelling of 20212022110993 in words is "twenty trillion, two hundred twelve billion, twenty-two million, one hundred ten thousand, nine hundred ninety-three".