20422231144 has 64 divisors (see below), whose sum is σ = 44812247040. Its totient is φ = 8542618560.

The previous prime is 20422231069. The next prime is 20422231153. The reversal of 20422231144 is 44113222402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4965649 + ... + 4969759.

It is an arithmetic number, because the mean of its divisors is an integer number (700191360).

Almost surely, 2^20422231144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20422231144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22406123520).

20422231144 is an abundant number, since it is smaller than the sum of its proper divisors (24390015896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20422231144 is a wasteful number, since it uses less digits than its factorization.

20422231144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6230 (or 6226 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20422231144 its reverse (44113222402), we get a palindrome (64535453546).

The spelling of 20422231144 in words is "twenty billion, four hundred twenty-two million, two hundred thirty-one thousand, one hundred forty-four".