20332113121220 has 24 divisors (see below), whose sum is σ = 42883889256600. Its totient is φ = 8097330638592.

The previous prime is 20332113121219. The next prime is 20332113121249. The reversal of 20332113121220 is 2212131123302.

It can be written as a sum of positive squares in 4 ways, for example, as 9548087640004 + 10784025481216 = 3089998^2 + 3283904^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2219658425 + ... + 2219667584.

It is an arithmetic number, because the mean of its divisors is an integer number (1786828719025).

Almost surely, 2^{20332113121220} is an apocalyptic number.

20332113121220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20332113121220 is an abundant number, since it is smaller than the sum of its proper divisors (22551776135380).

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

20332113121220 is a wasteful number, since it uses less digits than its factorization.

20332113121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4439326247 (or 4439326245 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20332113121220 its reverse (2212131123302), we get a palindrome (22544244244522).

The spelling of 20332113121220 in words is "twenty trillion, three hundred thirty-two billion, one hundred thirteen million, one hundred twenty-one thousand, two hundred twenty".