110212022100221 has 2 divisors, whose sum is σ = 110212022100222. Its totient is φ = 110212022100220.

The previous prime is 110212022100217. The next prime is 110212022100319. The reversal of 110212022100221 is 122001220212011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104825858402500 + 5386163697721 = 10238450^2 + 2320811^2 .

It is a cyclic number.

It is not a de Polignac number, because 110212022100221 - 2² = 110212022100217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 110212022100221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110212022000221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55106011050110 + 55106011050111.

It is an arithmetic number, because the mean of its divisors is an integer number (55106011050111).

Almost surely, 2^{110212022100221} is an apocalyptic number.

It is an amenable number.

110212022100221 is a deficient number, since it is larger than the sum of its proper divisors (1).

110212022100221 is an equidigital number, since it uses as much as digits as its factorization.

110212022100221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 110212022100221 its reverse (122001220212011), we get a palindrome (232213242312232).

The spelling of 110212022100221 in words is "one hundred ten trillion, two hundred twelve billion, twenty-two million, one hundred thousand, two hundred twenty-one".