110122121221 has 64 divisors (see below), whose sum is σ = 134900121600. Its totient is φ = 89752320000.

The previous prime is 110122121203. The next prime is 110122121231. The reversal of 110122121221 is 122121221011.

It is not a de Polignac number, because 110122121221 - 2⁵ = 110122121189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110122121195 and 110122121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110122121231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 171797061 + ... + 171797701.

It is an arithmetic number, because the mean of its divisors is an integer number (2107814400).

Almost surely, 2^110122121221 is an apocalyptic number.

It is an amenable number.

110122121221 is a deficient number, since it is larger than the sum of its proper divisors (24778000379).

110122121221 is a wasteful number, since it uses less digits than its factorization.

110122121221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951 (or 937 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 110122121221 its reverse (122121221011), we get a palindrome (232243342232).

The spelling of 110122121221 in words is "one hundred ten billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred twenty-one".