20224404011220 has 192 divisors, whose sum is σ = 59803122355200. Its totient is φ = 5092691788800.

The previous prime is 20224404011219. The next prime is 20224404011237. The reversal of 20224404011220 is 2211040442202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 435368995 + ... + 435415445.

It is an arithmetic number, because the mean of its divisors is an integer number (311474595600).

Almost surely, 2^{20224404011220} is an apocalyptic number.

20224404011220 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 20224404011220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29901561177600).

20224404011220 is an abundant number, since it is smaller than the sum of its proper divisors (39578718343980).

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

20224404011220 is a wasteful number, since it uses less digits than its factorization.

20224404011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47718 (or 47716 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 20224404011220 its reverse (2211040442202), we get a palindrome (22435444453422).

The spelling of 20224404011220 in words is "twenty trillion, two hundred twenty-four billion, four hundred four million, eleven thousand, two hundred twenty".