20132122220420 has 24 divisors (see below), whose sum is σ = 48317093329344. Its totient is φ = 6902441904096.

The previous prime is 20132122220407. The next prime is 20132122220443. The reversal of 20132122220420 is 2402222123102.

It is a super-2 number, since 2×20132122220420² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71900436362 + ... + 71900436641.

It is an arithmetic number, because the mean of its divisors is an integer number (2013212222056).

Almost surely, 2^{20132122220420} is an apocalyptic number.

20132122220420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20132122220420 is an abundant number, since it is smaller than the sum of its proper divisors (28184971108924).

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

20132122220420 is a wasteful number, since it uses less digits than its factorization.

20132122220420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143800873019 (or 143800873017 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20132122220420 its reverse (2402222123102), we get a palindrome (22534344343522).

The spelling of 20132122220420 in words is "twenty trillion, one hundred thirty-two billion, one hundred twenty-two million, two hundred twenty thousand, four hundred twenty".