110012211221221 has 8 divisors (see below), whose sum is σ = 110060549859960. Its totient is φ = 109963873998528.

The previous prime is 110012211221207. The next prime is 110012211221243. The reversal of 110012211221221 is 122122112210011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 273722544225 + 109738488676996 = 523185^2 + 10475614^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 110012211221221 - 2⁷ = 110012211221093 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 (110012211221921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173812195 + ... + 174443983.

It is an arithmetic number, because the mean of its divisors is an integer number (13757568732495).

Almost surely, 2^{110012211221221} is an apocalyptic number.

It is an amenable number.

110012211221221 is a deficient number, since it is larger than the sum of its proper divisors (48338638739).

110012211221221 is an equidigital number, since it uses as much as digits as its factorization.

110012211221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708023.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 110012211221221 its reverse (122122112210011), we get a palindrome (232134323431232).

The spelling of 110012211221221 in words is "one hundred ten trillion, twelve billion, two hundred eleven million, two hundred twenty-one thousand, two hundred twenty-one".