121220222203 has 16 divisors (see below), whose sum is σ = 122176960000. Its totient is φ = 120268553760.

The previous prime is 121220222173. The next prime is 121220222213. The reversal of 121220222203 is 302222022121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121220222203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121220222213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99933625 + ... + 99934837.

It is an arithmetic number, because the mean of its divisors is an integer number (7636060000).

Almost surely, 2^121220222203 is an apocalyptic number.

121220222203 is a deficient number, since it is larger than the sum of its proper divisors (956737797).

121220222203 is a wasteful number, since it uses less digits than its factorization.

121220222203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 121220222203 its reverse (302222022121), we get a palindrome (423442244324).

The spelling of 121220222203 in words is "one hundred twenty-one billion, two hundred twenty million, two hundred twenty-two thousand, two hundred three".