220112000100221 has 4 divisors (see below), whose sum is σ = 220112296256832. Its totient is φ = 220111703943612.

The previous prime is 220112000100143. The next prime is 220112000100229. The reversal of 220112000100221 is 122001000211022.

220112000100221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220112000100221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220112000100196 and 220112000100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220112000100229) 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, 146960651 + ... + 148450856.

It is an arithmetic number, because the mean of its divisors is an integer number (55028074064208).

Almost surely, 2^{220112000100221} is an apocalyptic number.

It is an amenable number.

220112000100221 is a deficient number, since it is larger than the sum of its proper divisors (296156611).

220112000100221 is an equidigital number, since it uses as much as digits as its factorization.

220112000100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296156610.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 220112000100221 its reverse (122001000211022), we get a palindrome (342113000311243).

The spelling of 220112000100221 in words is "two hundred twenty trillion, one hundred twelve billion, one hundred thousand, two hundred twenty-one".