12121223011233 has 32 divisors (see below), whose sum is σ = 18640623640320. Its totient is φ = 6862597447680.

The previous prime is 12121223011201. The next prime is 12121223011267. The reversal of 12121223011233 is 33211032212121.

It is not a de Polignac number, because 12121223011233 - 2⁵ = 12121223011201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12121203011233) 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, 67520553 + ... + 67699833.

It is an arithmetic number, because the mean of its divisors is an integer number (582519488760).

Almost surely, 2^{12121223011233} is an apocalyptic number.

It is an amenable number.

12121223011233 is a deficient number, since it is larger than the sum of its proper divisors (6519400629087).

12121223011233 is a wasteful number, since it uses less digits than its factorization.

12121223011233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208937.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12121223011233 its reverse (33211032212121), we get a palindrome (45332255223354).

The spelling of 12121223011233 in words is "twelve trillion, one hundred twenty-one billion, two hundred twenty-three million, eleven thousand, two hundred thirty-three".