121223232011 has 16 divisors (see below), whose sum is σ = 139675995648. Its totient is φ = 103056408000.

The previous prime is 121223231993. The next prime is 121223232017. The reversal of 121223232011 is 110232322121.

It is not a de Polignac number, because 121223232011 - 2¹⁰ = 121223230987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121223232017) 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, 590471 + ... + 768831.

It is an arithmetic number, because the mean of its divisors is an integer number (8729749728).

Almost surely, 2^121223232011 is an apocalyptic number.

121223232011 is a deficient number, since it is larger than the sum of its proper divisors (18452763637).

121223232011 is a wasteful number, since it uses less digits than its factorization.

121223232011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179162.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121223232011 its reverse (110232322121), we get a palindrome (231455554132).

The spelling of 121223232011 in words is "one hundred twenty-one billion, two hundred twenty-three million, two hundred thirty-two thousand, eleven".