110121312202021 has 2 divisors, whose sum is σ = 110121312202022. Its totient is φ = 110121312202020.

The previous prime is 110121312202007. The next prime is 110121312202051. The reversal of 110121312202021 is 120202213121011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86968027692225 + 23153284509796 = 9325665^2 + 4811786^2 .

It is a cyclic number.

It is not a de Polignac number, because 110121312202021 - 2¹⁷ = 110121312070949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 110121312202021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110121312202051) 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 as a sum of consecutive naturals, namely, 55060656101010 + 55060656101011.

It is an arithmetic number, because the mean of its divisors is an integer number (55060656101011).

Almost surely, 2^{110121312202021} is an apocalyptic number.

It is an amenable number.

110121312202021 is a deficient number, since it is larger than the sum of its proper divisors (1).

110121312202021 is an equidigital number, since it uses as much as digits as its factorization.

110121312202021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 110121312202021 its reverse (120202213121011), we get a palindrome (230323525323032).

The spelling of 110121312202021 in words is "one hundred ten trillion, one hundred twenty-one billion, three hundred twelve million, two hundred two thousand, twenty-one".