110212110521 has 2 divisors, whose sum is σ = 110212110522. Its totient is φ = 110212110520.

The previous prime is 110212110517. The next prime is 110212110523. The reversal of 110212110521 is 125011212011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109982436496 + 229674025 = 331636^2 + 15155^2 .

It is a cyclic number.

It is not a de Polignac number, because 110212110521 - 2² = 110212110517 is a prime.

Together with 110212110523, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 110212110521.

It is not a weakly prime, because it can be changed into another prime (110212110523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55106055260 + 55106055261.

It is an arithmetic number, because the mean of its divisors is an integer number (55106055261).

Almost surely, 2^110212110521 is an apocalyptic number.

It is an amenable number.

110212110521 is a deficient number, since it is larger than the sum of its proper divisors (1).

110212110521 is an equidigital number, since it uses as much as digits as its factorization.

110212110521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 110212110521 its reverse (125011212011), we get a palindrome (235223322532).

The spelling of 110212110521 in words is "one hundred ten billion, two hundred twelve million, one hundred ten thousand, five hundred twenty-one".