20221812097 has 4 divisors (see below), whose sum is σ = 20523630256. Its totient is φ = 19919993940.

The previous prime is 20221812077. The next prime is 20221812133. The reversal of 20221812097 is 79021812202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20221812097 - 2²⁷ = 20087594369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221812047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150908979 + ... + 150909112.

It is an arithmetic number, because the mean of its divisors is an integer number (5130907564).

Almost surely, 2^20221812097 is an apocalyptic number.

It is an amenable number.

20221812097 is a deficient number, since it is larger than the sum of its proper divisors (301818159).

20221812097 is an equidigital number, since it uses as much as digits as its factorization.

20221812097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301818158.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 20221812097 in words is "twenty billion, two hundred twenty-one million, eight hundred twelve thousand, ninety-seven".