20433222097 has 4 divisors (see below), whose sum is σ = 21635176356. Its totient is φ = 19231267840.

The previous prime is 20433222053. The next prime is 20433222109. The reversal of 20433222097 is 79022233402.

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 14180999056 + 6252223041 = 119084^2 + 79071^2 .

It is a cyclic number.

It is not a de Polignac number, because 20433222097 - 2¹⁹ = 20432697809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20433222037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600977104 + ... + 600977137.

It is an arithmetic number, because the mean of its divisors is an integer number (5408794089).

Almost surely, 2^20433222097 is an apocalyptic number.

It is an amenable number.

20433222097 is a deficient number, since it is larger than the sum of its proper divisors (1201954259).

20433222097 is a wasteful number, since it uses less digits than its factorization.

20433222097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201954258.

The product of its (nonzero) digits is 36288, while the sum is 34.

Adding to 20433222097 its reverse (79022233402), we get a palindrome (99455455499).

The spelling of 20433222097 in words is "twenty billion, four hundred thirty-three million, two hundred twenty-two thousand, ninety-seven".