10110221112221 has 4 divisors (see below), whose sum is σ = 10112593850844. Its totient is φ = 10107848373600.

The previous prime is 10110221112193. The next prime is 10110221112253. The reversal of 10110221112221 is 12221112201101.

10110221112221 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 6339870768100 + 3770350344121 = 2517910^2 + 1941739^2 .

It is a cyclic number.

It is not a de Polignac number, because 10110221112221 - 2¹⁰ = 10110221111197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10110221112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10110221172221) 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, 1186362920 + ... + 1186371441.

It is an arithmetic number, because the mean of its divisors is an integer number (2528148462711).

Almost surely, 2^{10110221112221} is an apocalyptic number.

It is an amenable number.

10110221112221 is a deficient number, since it is larger than the sum of its proper divisors (2372738623).

10110221112221 is an equidigital number, since it uses as much as digits as its factorization.

10110221112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372738622.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 10110221112221 its reverse (12221112201101), we get a palindrome (22331333313322).

The spelling of 10110221112221 in words is "ten trillion, one hundred ten billion, two hundred twenty-one million, one hundred twelve thousand, two hundred twenty-one".