20422322255 has 32 divisors (see below), whose sum is σ = 25305281280. Its totient is φ = 15814656000.

The previous prime is 20422322251. The next prime is 20422322257. The reversal of 20422322255 is 55222322402.

It is not a de Polignac number, because 20422322255 - 2² = 20422322251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20422322251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17711759 + ... + 17712911.

It is an arithmetic number, because the mean of its divisors is an integer number (790790040).

Almost surely, 2^20422322255 is an apocalyptic number.

20422322255 is a deficient number, since it is larger than the sum of its proper divisors (4882959025).

20422322255 is a wasteful number, since it uses less digits than its factorization.

20422322255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051.

The product of its (nonzero) digits is 19200, while the sum is 29.

Adding to 20422322255 its reverse (55222322402), we get a palindrome (75644644657).

The spelling of 20422322255 in words is "twenty billion, four hundred twenty-two million, three hundred twenty-two thousand, two hundred fifty-five".