121000121212223 has 32 divisors (see below), whose sum is σ = 135748522272000. Its totient is φ = 106902771494400.

The previous prime is 121000121212207. The next prime is 121000121212259. The reversal of 121000121212223 is 322212121000121.

It is a cyclic number.

It is not a de Polignac number, because 121000121212223 - 2⁴ = 121000121212207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121000121212195 and 121000121212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121000121212423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165468503 + ... + 166198151.

It is an arithmetic number, because the mean of its divisors is an integer number (4242141321000).

Almost surely, 2^{121000121212223} is an apocalyptic number.

121000121212223 is a deficient number, since it is larger than the sum of its proper divisors (14748401059777).

121000121212223 is a wasteful number, since it uses less digits than its factorization.

121000121212223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731463.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 121000121212223 its reverse (322212121000121), we get a palindrome (443212242212344).

The spelling of 121000121212223 in words is "one hundred twenty-one trillion, one hundred twenty-one million, two hundred twelve thousand, two hundred twenty-three".