121102223 has 4 divisors (see below), whose sum is σ = 132111528. Its totient is φ = 110092920.

The previous prime is 121102171. The next prime is 121102243. The reversal of 121102223 is 322201121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121102223 - 2⁶ = 121102159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121102198 and 121102207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121102243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5504636 + ... + 5504657.

It is an arithmetic number, because the mean of its divisors is an integer number (33027882).

Almost surely, 2^121102223 is an apocalyptic number.

121102223 is a deficient number, since it is larger than the sum of its proper divisors (11009305).

121102223 is a wasteful number, since it uses less digits than its factorization.

121102223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11009304.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121102223 is about 11004.6455190524. The cubic root of 121102223 is about 494.7479899399.

Adding to 121102223 its reverse (322201121), we get a palindrome (443303344).

The spelling of 121102223 in words is "one hundred twenty-one million, one hundred two thousand, two hundred twenty-three".