220011200220221 has 4 divisors (see below), whose sum is σ = 220519309228092. Its totient is φ = 219503091212352.

The previous prime is 220011200220103. The next prime is 220011200220263. The reversal of 220011200220221 is 122022002110022.

It is a happy number.

220011200220221 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.

It can be written as a sum of positive squares in 2 ways, for example, as 50123072455225 + 169888127764996 = 7079765^2 + 13034114^2 .

It is a cyclic number.

It is not a de Polignac number, because 220011200220221 - 2³⁰ = 220010126478397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220011200220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220011200222221) 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, 254054503286 + ... + 254054504151.

It is an arithmetic number, because the mean of its divisors is an integer number (55129827307023).

Almost surely, 2^{220011200220221} is an apocalyptic number.

It is an amenable number.

220011200220221 is a deficient number, since it is larger than the sum of its proper divisors (508109007871).

220011200220221 is an equidigital number, since it uses as much as digits as its factorization.

220011200220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508109007870.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 220011200220221 its reverse (122022002110022), we get a palindrome (342033202330243).

The spelling of 220011200220221 in words is "two hundred twenty trillion, eleven billion, two hundred million, two hundred twenty thousand, two hundred twenty-one".