121223213322203 has 4 divisors (see below), whose sum is σ = 121503174554328. Its totient is φ = 120943252090080.

The previous prime is 121223213322181. The next prime is 121223213322241. The reversal of 121223213322203 is 302223312322121.

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 121223213322203 - 2¹² = 121223213318107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121223213322283) 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, 139980615413 + ... + 139980616278.

It is an arithmetic number, because the mean of its divisors is an integer number (30375793638582).

Almost surely, 2^{121223213322203} is an apocalyptic number.

121223213322203 is a deficient number, since it is larger than the sum of its proper divisors (279961232125).

121223213322203 is an equidigital number, since it uses as much as digits as its factorization.

121223213322203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279961232124.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 121223213322203 its reverse (302223312322121), we get a palindrome (423446525644324).

The spelling of 121223213322203 in words is "one hundred twenty-one trillion, two hundred twenty-three billion, two hundred thirteen million, three hundred twenty-two thousand, two hundred three".