20220021332 has 24 divisors (see below), whose sum is σ = 41426387520. Its totient is φ = 8454363840.

The previous prime is 20220021329. The next prime is 20220021377. The reversal of 20220021332 is 23312002202.

It is a self number, because there is not a number n which added to its sum of digits gives 20220021332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8805482 + ... + 8807777.

It is an arithmetic number, because the mean of its divisors is an integer number (1726099480).

Almost surely, 2^20220021332 is an apocalyptic number.

It is an amenable number.

20220021332 is an abundant number, since it is smaller than the sum of its proper divisors (21206366188).

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

20220021332 is a wasteful number, since it uses less digits than its factorization.

20220021332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17613311 (or 17613309 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20220021332 its reverse (23312002202), we get a palindrome (43532023534).

The spelling of 20220021332 in words is "twenty billion, two hundred twenty million, twenty-one thousand, three hundred thirty-two".