20045321022 has 32 divisors (see below), whose sum is σ = 40275555840. Its totient is φ = 6651005760.

The previous prime is 20045320979. The next prime is 20045321083. The reversal of 20045321022 is 22012354002.

It is a self number, because there is not a number n which added to its sum of digits gives 20045321022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1746033 + ... + 1757475.

It is an arithmetic number, because the mean of its divisors is an integer number (1258611120).

Almost surely, 2^20045321022 is an apocalyptic number.

20045321022 is an abundant number, since it is smaller than the sum of its proper divisors (20230234818).

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

20045321022 is a wasteful number, since it uses less digits than its factorization.

20045321022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12768.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 20045321022 its reverse (22012354002), we get a palindrome (42057675024).

The spelling of 20045321022 in words is "twenty billion, forty-five million, three hundred twenty-one thousand, twenty-two".