20132210444220 has 384 divisors, whose sum is σ = 76256461209600. Its totient is φ = 4306931253504.

The previous prime is 20132210444153. The next prime is 20132210444273. The reversal of 20132210444220 is 2244401223102.

It is a happy number.

20132210444220 is a `hidden beast` number, since 2 + 0 + 1 + 3 + 2 + 210 + 4 + 442 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4272417 + ... + 7649703.

It is an arithmetic number, because the mean of its divisors is an integer number (198584534400).

Almost surely, 2^{20132210444220} is an apocalyptic number.

20132210444220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20132210444220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38128230604800).

20132210444220 is an abundant number, since it is smaller than the sum of its proper divisors (56124250765380).

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

20132210444220 is a wasteful number, since it uses less digits than its factorization.

20132210444220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377414 (or 3377406 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 20132210444220 its reverse (2244401223102), we get a palindrome (22376611667322).

The spelling of 20132210444220 in words is "twenty trillion, one hundred thirty-two billion, two hundred ten million, four hundred forty-four thousand, two hundred twenty".