110001200012221 has 6 divisors (see below), whose sum is σ = 127960579606110. Its totient is φ = 94286742867576.

The previous prime is 110001200012191. The next prime is 110001200012237. The reversal of 110001200012221 is 122210002100011.

It can be written as a sum of positive squares in only one way, i.e., 76992095936196 + 33009104076025 = 8774514^2 + 5745355^2 .

It is not a de Polignac number, because 110001200012221 - 2⁵ = 110001200012189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110001200012251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1122461224566 + ... + 1122461224663.

It is an arithmetic number, because the mean of its divisors is an integer number (21326763267685).

Almost surely, 2^{110001200012221} is an apocalyptic number.

It is an amenable number.

110001200012221 is a deficient number, since it is larger than the sum of its proper divisors (17959379593889).

110001200012221 is an equidigital number, since it uses as much as digits as its factorization.

110001200012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244922449243 (or 2244922449236 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 110001200012221 its reverse (122210002100011), we get a palindrome (232211202112232).

The spelling of 110001200012221 in words is "one hundred ten trillion, one billion, two hundred million, twelve thousand, two hundred twenty-one".