20422211345 has 16 divisors (see below), whose sum is σ = 25100299008. Its totient is φ = 15944012160.

The previous prime is 20422211339. The next prime is 20422211363. The reversal of 20422211345 is 54311222402.

It is not a de Polignac number, because 20422211345 - 2²⁴ = 20405434129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43676 + ... + 206765.

It is an arithmetic number, because the mean of its divisors is an integer number (1568768688).

Almost surely, 2^20422211345 is an apocalyptic number.

It is an amenable number.

20422211345 is a deficient number, since it is larger than the sum of its proper divisors (4678087663).

20422211345 is a wasteful number, since it uses less digits than its factorization.

20422211345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250840.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 20422211345 its reverse (54311222402), we get a palindrome (74733433747).

The spelling of 20422211345 in words is "twenty billion, four hundred twenty-two million, two hundred eleven thousand, three hundred forty-five".