10110121122221 has 4 divisors (see below), whose sum is σ = 10110417406272. Its totient is φ = 10109824838172.

The previous prime is 10110121122197. The next prime is 10110121122239. The reversal of 10110121122221 is 12222112101101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10110121122221 - 2¹⁰ = 10110121121197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10110121122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10110121122121) 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, 148090835 + ... + 148159088.

It is an arithmetic number, because the mean of its divisors is an integer number (2527604351568).

Almost surely, 2^{10110121122221} is an apocalyptic number.

It is an amenable number.

10110121122221 is a deficient number, since it is larger than the sum of its proper divisors (296284051).

10110121122221 is an equidigital number, since it uses as much as digits as its factorization.

10110121122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296284050.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 10110121122221 its reverse (12222112101101), we get a palindrome (22332233223322).

The spelling of 10110121122221 in words is "ten trillion, one hundred ten billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred twenty-one".