20321222113020 has 48 divisors (see below), whose sum is σ = 57150080201088. Its totient is φ = 5395120345920.

The previous prime is 20321222112979. The next prime is 20321222113021. The reversal of 20321222113020 is 2031122212302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20321222113021) 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, 745993066 + ... + 746020305.

It is an arithmetic number, because the mean of its divisors is an integer number (1190626670856).

Almost surely, 2^{20321222113020} is an apocalyptic number.

20321222113020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20321222113020 is an abundant number, since it is smaller than the sum of its proper divisors (36828858088068).

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

20321222113020 is a wasteful number, since it uses less digits than its factorization.

20321222113020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492013610 (or 1492013608 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20321222113020 its reverse (2031122212302), we get a palindrome (22352344325322).

The spelling of 20321222113020 in words is "twenty trillion, three hundred twenty-one billion, two hundred twenty-two million, one hundred thirteen thousand, twenty".