1222110121 has 8 divisors (see below), whose sum is σ = 1248724224. Its totient is φ = 1195521600.

The previous prime is 1222110107. The next prime is 1222110163. The reversal of 1222110121 is 1210112221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222110121 - 2²⁵ = 1188555689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222110521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114801 + ... + 124993.

It is an arithmetic number, because the mean of its divisors is an integer number (156090528).

Almost surely, 2^1222110121 is an apocalyptic number.

It is an amenable number.

1222110121 is a deficient number, since it is larger than the sum of its proper divisors (26614103).

1222110121 is a wasteful number, since it uses less digits than its factorization.

1222110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12791.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1222110121 is about 34958.6916374169. The cubic root of 1222110121 is about 1069.1454209520.

Adding to 1222110121 its reverse (1210112221), we get a palindrome (2432222342).

The spelling of 1222110121 in words is "one billion, two hundred twenty-two million, one hundred ten thousand, one hundred twenty-one".