220120100221 has 8 divisors (see below), whose sum is σ = 251937423360. Its totient is φ = 188395675728.

The previous prime is 220120100209. The next prime is 220120100287. The reversal of 220120100221 is 122001021022.

It is a happy number.

220120100221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220120100221 - 2⁷ = 220120100093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220120100021) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23219581 + ... + 23229058.

It is an arithmetic number, because the mean of its divisors is an integer number (31492177920).

Almost surely, 2^220120100221 is an apocalyptic number.

It is an amenable number.

220120100221 is a deficient number, since it is larger than the sum of its proper divisors (31817323139).

220120100221 is an equidigital number, since it uses as much as digits as its factorization.

220120100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46449323.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220120100221 its reverse (122001021022), we get a palindrome (342121121243).

The spelling of 220120100221 in words is "two hundred twenty billion, one hundred twenty million, one hundred thousand, two hundred twenty-one".