20022220332 has 24 divisors (see below), whose sum is σ = 51909460400. Its totient is φ = 6674073408.

The previous prime is 20022220331. The next prime is 20022220357. The reversal of 20022220332 is 23302222002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20022220331) 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 7 ways as a sum of consecutive naturals, for example, 92695357 + ... + 92695572.

Almost surely, 2^20022220332 is an apocalyptic number.

It is an amenable number.

20022220332 is an abundant number, since it is smaller than the sum of its proper divisors (31887240068).

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

20022220332 is a wasteful number, since it uses less digits than its factorization.

20022220332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185390942 (or 185390934 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 20022220332 its reverse (23302222002), we get a palindrome (43324442334).

The spelling of 20022220332 in words is "twenty billion, twenty-two million, two hundred twenty thousand, three hundred thirty-two".