20221143044 has 24 divisors (see below), whose sum is σ = 35967321600. Its totient is φ = 9945711360.

The previous prime is 20221142959. The next prime is 20221143049. The reversal of 20221143044 is 44034112202.

It is not an unprimeable number, because it can be changed into a prime (20221143049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32429 + ... + 203700.

It is an arithmetic number, because the mean of its divisors is an integer number (1498638400).

Almost surely, 2^20221143044 is an apocalyptic number.

It is an amenable number.

20221143044 is a deficient number, since it is larger than the sum of its proper divisors (15746178556).

20221143044 is a wasteful number, since it uses less digits than its factorization.

20221143044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236483 (or 236481 counting only the distinct ones).

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

Adding to 20221143044 its reverse (44034112202), we get a palindrome (64255255246).

The spelling of 20221143044 in words is "twenty billion, two hundred twenty-one million, one hundred forty-three thousand, forty-four".