20221143532 has 12 divisors (see below), whose sum is σ = 35512045576. Its totient is φ = 10074844800.

The previous prime is 20221143521. The next prime is 20221143533. The reversal of 20221143532 is 23534112202.

It is a junction number, because it is equal to n+sod(n) for n = 20221143497 and 20221143506.

It is not an unprimeable number, because it can be changed into a prime (20221143533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8930469 + ... + 8932732.

Almost surely, 2^20221143532 is an apocalyptic number.

It is an amenable number.

20221143532 is a deficient number, since it is larger than the sum of its proper divisors (15290902044).

20221143532 is a wasteful number, since it uses less digits than its factorization.

20221143532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17863488 (or 17863486 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 20221143532 its reverse (23534112202), we get a palindrome (43755255734).

The spelling of 20221143532 in words is "twenty billion, two hundred twenty-one million, one hundred forty-three thousand, five hundred thirty-two".