110121211120221 has 20 divisors (see below), whose sum is σ = 188002349849952. Its totient is φ = 62926406354088.

The previous prime is 110121211120201. The next prime is 110121211120279. The reversal of 110121211120221 is 122021112121011.

It is a happy number.

110121211120221 is a `hidden beast` number, since 1 + 101 + 212 + 11 + 120 + 221 = 666.

It is not a de Polignac number, because 110121211120221 - 2¹⁰ = 110121211119197 is a prime.

It is a super-2 number, since 2×110121211120221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 110121211120194 and 110121211120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110121211120201) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 97108651215 + ... + 97108652348.

Almost surely, 2^{110121211120221} is an apocalyptic number.

It is an amenable number.

110121211120221 is a deficient number, since it is larger than the sum of its proper divisors (77881138729731).

110121211120221 is an equidigital number, since it uses as much as digits as its factorization.

110121211120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194217303582 (or 194217303573 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 110121211120221 its reverse (122021112121011), we get a palindrome (232142323241232).

The spelling of 110121211120221 in words is "one hundred ten trillion, one hundred twenty-one billion, two hundred eleven million, one hundred twenty thousand, two hundred twenty-one".