110221220021201 has 4 divisors (see below), whose sum is σ = 114021951746100. Its totient is φ = 106420488296304.

The previous prime is 110221220021173. The next prime is 110221220021207. The reversal of 110221220021201 is 102120022122011.

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 76976758849600 + 33244461171601 = 8773640^2 + 5765801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110221220021201 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 110221220021201.

It is not an unprimeable number, because it can be changed into a prime (110221220021207) 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, 1900365862406 + ... + 1900365862463.

It is an arithmetic number, because the mean of its divisors is an integer number (28505487936525).

Almost surely, 2^{110221220021201} is an apocalyptic number.

It is an amenable number.

110221220021201 is a deficient number, since it is larger than the sum of its proper divisors (3800731724899).

110221220021201 is an equidigital number, since it uses as much as digits as its factorization.

110221220021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3800731724898.

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

Adding to 110221220021201 its reverse (102120022122011), we get a palindrome (212341242143212).

The spelling of 110221220021201 in words is "one hundred ten trillion, two hundred twenty-one billion, two hundred twenty million, twenty-one thousand, two hundred one".