1212212113233 has 16 divisors (see below), whose sum is σ = 1772959161792. Its totient is φ = 730615032000.

The previous prime is 1212212113219. The next prime is 1212212113319. The reversal of 1212212113233 is 3323112122121.

It is not a de Polignac number, because 1212212113233 - 2²⁹ = 1211675242321 is a prime.

It is a super-2 number, since 2×1212212113233² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212212163233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101468338 + ... + 101480283.

It is an arithmetic number, because the mean of its divisors is an integer number (110809947612).

Almost surely, 2^{1212212113233} is an apocalyptic number.

It is an amenable number.

1212212113233 is a deficient number, since it is larger than the sum of its proper divisors (560747048559).

1212212113233 is a wasteful number, since it uses less digits than its factorization.

1212212113233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202948816.

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

Adding to 1212212113233 its reverse (3323112122121), we get a palindrome (4535324235354).

The spelling of 1212212113233 in words is "one trillion, two hundred twelve billion, two hundred twelve million, one hundred thirteen thousand, two hundred thirty-three".