20022221323 has 16 divisors (see below), whose sum is σ = 22029549696. Its totient is φ = 18081930240.

The previous prime is 20022221311. The next prime is 20022221339. The reversal of 20022221323 is 32312222002.

It is not a de Polignac number, because 20022221323 - 2¹⁷ = 20022090251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20022221323.

It is not an unprimeable number, because it can be changed into a prime (20022021323) 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 15 ways as a sum of consecutive naturals, for example, 2293615 + ... + 2302327.

It is an arithmetic number, because the mean of its divisors is an integer number (1376846856).

Almost surely, 2^20022221323 is an apocalyptic number.

20022221323 is a deficient number, since it is larger than the sum of its proper divisors (2007328373).

20022221323 is a wasteful number, since it uses less digits than its factorization.

20022221323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12534.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20022221323 its reverse (32312222002), we get a palindrome (52334443325).

The spelling of 20022221323 in words is "twenty billion, twenty-two million, two hundred twenty-one thousand, three hundred twenty-three".