20020221322343 has 16 divisors (see below), whose sum is σ = 21932554954752. Its totient is φ = 18123345108000.

The previous prime is 20020221322327. The next prime is 20020221322363. The reversal of 20020221322343 is 34322312202002.

It is a happy number.

It is not a de Polignac number, because 20020221322343 - 2⁴ = 20020221322327 is a prime.

It is a super-2 number, since 2×20020221322343² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020221322303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3782705 + ... + 7372197.

It is an arithmetic number, because the mean of its divisors is an integer number (1370784684672).

Almost surely, 2^{20020221322343} is an apocalyptic number.

20020221322343 is a deficient number, since it is larger than the sum of its proper divisors (1912333632409).

20020221322343 is a wasteful number, since it uses less digits than its factorization.

20020221322343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3591646.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20020221322343 its reverse (34322312202002), we get a palindrome (54342533524345).

The spelling of 20020221322343 in words is "twenty trillion, twenty billion, two hundred twenty-one million, three hundred twenty-two thousand, three hundred forty-three".