110121220212121 has 2 divisors, whose sum is σ = 110121220212122. Its totient is φ = 110121220212120.

The previous prime is 110121220212103. The next prime is 110121220212127. The reversal of 110121220212121 is 121212022121011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89738884709721 + 20382335502400 = 9473061^2 + 4514680^2 .

It is a cyclic number.

It is not a de Polignac number, because 110121220212121 - 2¹⁵ = 110121220179353 is a prime.

It is not a weakly prime, because it can be changed into another prime (110121220212127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55060610106060 + 55060610106061.

It is an arithmetic number, because the mean of its divisors is an integer number (55060610106061).

Almost surely, 2^{110121220212121} is an apocalyptic number.

It is an amenable number.

110121220212121 is a deficient number, since it is larger than the sum of its proper divisors (1).

110121220212121 is an equidigital number, since it uses as much as digits as its factorization.

110121220212121 is an odious number, because the sum of its binary digits is odd.

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

Adding to 110121220212121 its reverse (121212022121011), we get a palindrome (231333242333132).

The spelling of 110121220212121 in words is "one hundred ten trillion, one hundred twenty-one billion, two hundred twenty million, two hundred twelve thousand, one hundred twenty-one".