220202221001220 has 96 divisors (see below), whose sum is σ = 689175813715200. Its totient is φ = 58368971930112.

The previous prime is 220202221001197. The next prime is 220202221001261. The reversal of 220202221001220 is 22100122202022.

220202221001220 is a `hidden beast` number, since 2 + 20 + 202 + 221 + 0 + 0 + 1 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 220202221001193 and 220202221001202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1220813685 + ... + 1220994044.

It is an arithmetic number, because the mean of its divisors is an integer number (7178914726200).

Almost surely, 2^{220202221001220} is an apocalyptic number.

220202221001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220202221001220 is an abundant number, since it is smaller than the sum of its proper divisors (468973592713980).

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

220202221001220 is a wasteful number, since it uses less digits than its factorization.

220202221001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441807914 (or 2441807906 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 220202221001220 its reverse (22100122202022), we get a palindrome (242302343203242).

The spelling of 220202221001220 in words is "two hundred twenty trillion, two hundred two billion, two hundred twenty-one million, one thousand, two hundred twenty".