220120120221220 has 12 divisors (see below), whose sum is σ = 462252252464604. Its totient is φ = 88048048088480.

The previous prime is 220120120221193. The next prime is 220120120221227. The reversal of 220120120221220 is 22122021021022.

It can be written as a sum of positive squares in 2 ways, for example, as 87049683721764 + 133070436499456 = 9330042^2 + 11535616^2 .

It is not an unprimeable number, because it can be changed into a prime (220120120221227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5503003005511 + ... + 5503003005550.

It is an arithmetic number, because the mean of its divisors is an integer number (38521021038717).

Almost surely, 2^{220120120221220} is an apocalyptic number.

220120120221220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220120120221220 is an abundant number, since it is smaller than the sum of its proper divisors (242132132243384).

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

220120120221220 is a wasteful number, since it uses less digits than its factorization.

220120120221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11006006011070 (or 11006006011068 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 220120120221220 its reverse (22122021021022), we get a palindrome (242242141242242).

The spelling of 220120120221220 in words is "two hundred twenty trillion, one hundred twenty billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twenty".