220100012221 has 8 divisors (see below), whose sum is σ = 225723685824. Its totient is φ = 214488499680.

The previous prime is 220100012159. The next prime is 220100012239. The reversal of 220100012221 is 122210001022.

It is a happy number.

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 220100012221 - 2²³ = 220091623613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220100012261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3003601 + ... + 3076006.

It is an arithmetic number, because the mean of its divisors is an integer number (28215460728).

Almost surely, 2^220100012221 is an apocalyptic number.

It is an amenable number.

220100012221 is a deficient number, since it is larger than the sum of its proper divisors (5623673603).

220100012221 is an equidigital number, since it uses as much as digits as its factorization.

220100012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6080531.

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

Adding to 220100012221 its reverse (122210001022), we get a palindrome (342310013243).

The spelling of 220100012221 in words is "two hundred twenty billion, one hundred million, twelve thousand, two hundred twenty-one".