20422213144 has 16 divisors (see below), whose sum is σ = 38356231320. Its totient is φ = 10193884800.

The previous prime is 20422213129. The next prime is 20422213157. The reversal of 20422213144 is 44131222402.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 2147682 + ... + 2157169.

Almost surely, 2^20422213144 is an apocalyptic number.

It is an amenable number.

20422213144 is a deficient number, since it is larger than the sum of its proper divisors (17934018176).

20422213144 is a wasteful number, since it uses less digits than its factorization.

20422213144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4305450 (or 4305446 counting only the distinct ones).

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

Adding to 20422213144 its reverse (44131222402), we get a palindrome (64553435546).

The spelling of 20422213144 in words is "twenty billion, four hundred twenty-two million, two hundred thirteen thousand, one hundred forty-four".