110122212012221 has 4 divisors (see below), whose sum is σ = 110217721303932. Its totient is φ = 110026702720512.

The previous prime is 110122212012191. The next prime is 110122212012271. The reversal of 110122212012221 is 122210212221011.

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 49001260008100 + 61120952004121 = 7000090^2 + 7817989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110122212012221 is a prime.

It is a super-2 number, since 2×110122212012221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110122212012193 and 110122212012202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110122212012271) 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, 47754644126 + ... + 47754646431.

It is an arithmetic number, because the mean of its divisors is an integer number (27554430325983).

Almost surely, 2^{110122212012221} is an apocalyptic number.

It is an amenable number.

110122212012221 is a deficient number, since it is larger than the sum of its proper divisors (95509291711).

110122212012221 is an equidigital number, since it uses as much as digits as its factorization.

110122212012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95509291710.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 110122212012221 its reverse (122210212221011), we get a palindrome (232332424233232).

The spelling of 110122212012221 in words is "one hundred ten trillion, one hundred twenty-two billion, two hundred twelve million, twelve thousand, two hundred twenty-one".