1110101012221 has 4 divisors (see below), whose sum is σ = 1148380357500. Its totient is φ = 1071821666944.

The previous prime is 1110101012161. The next prime is 1110101012227. The reversal of 1110101012221 is 1222101010111.

It is a happy number.

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 489174348100 + 620926664121 = 699410^2 + 787989^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110101012221 - 2⁷ = 1110101012093 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 (1110101012227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19139672596 + ... + 19139672653.

It is an arithmetic number, because the mean of its divisors is an integer number (287095089375).

Almost surely, 2^{1110101012221} is an apocalyptic number.

It is an amenable number.

1110101012221 is a deficient number, since it is larger than the sum of its proper divisors (38279345279).

1110101012221 is an equidigital number, since it uses as much as digits as its factorization.

1110101012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38279345278.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1110101012221 its reverse (1222101010111), we get a palindrome (2332202022332).

The spelling of 1110101012221 in words is "one trillion, one hundred ten billion, one hundred one million, twelve thousand, two hundred twenty-one".