121222103 has 4 divisors (see below), whose sum is σ = 122756640. Its totient is φ = 119687568.

The previous prime is 121222099. The next prime is 121222133. The reversal of 121222103 is 301222121.

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 121222103 - 2² = 121222099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121222133) 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, 767150 + ... + 767307.

It is an arithmetic number, because the mean of its divisors is an integer number (30689160).

Almost surely, 2^121222103 is an apocalyptic number.

121222103 is a deficient number, since it is larger than the sum of its proper divisors (1534537).

121222103 is an equidigital number, since it uses as much as digits as its factorization.

121222103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534536.

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

The square root of 121222103 is about 11010.0909623854. The cubic root of 121222103 is about 494.9111876850.

Adding to 121222103 its reverse (301222121), we get a palindrome (422444224).

The spelling of 121222103 in words is "one hundred twenty-one million, two hundred twenty-two thousand, one hundred three".