20221144304 has 10 divisors (see below), whose sum is σ = 39178467120. Its totient is φ = 10110572144.

The previous prime is 20221144253. The next prime is 20221144357. The reversal of 20221144304 is 40344112202.

It is a self number, because there is not a number n which added to its sum of digits gives 20221144304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631910744 + ... + 631910775.

It is an arithmetic number, because the mean of its divisors is an integer number (3917846712).

Almost surely, 2^20221144304 is an apocalyptic number.

It is an amenable number.

20221144304 is a deficient number, since it is larger than the sum of its proper divisors (18957322816).

20221144304 is a wasteful number, since it uses less digits than its factorization.

20221144304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263821527 (or 1263821521 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20221144304 its reverse (40344112202), we get a palindrome (60565256506).

The spelling of 20221144304 in words is "twenty billion, two hundred twenty-one million, one hundred forty-four thousand, three hundred four".