1212011120233 has 4 divisors (see below), whose sum is σ = 1212014709328. Its totient is φ = 1212007531140.

The previous prime is 1212011120231. The next prime is 1212011120251. The reversal of 1212011120233 is 3320211102121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1212011120233 - 2¹ = 1212011120231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212011120233.

It is not an unprimeable number, because it can be changed into a prime (1212011120231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1228491 + ... + 1983232.

It is an arithmetic number, because the mean of its divisors is an integer number (303003677332).

Almost surely, 2^{1212011120233} is an apocalyptic number.

It is an amenable number.

1212011120233 is a deficient number, since it is larger than the sum of its proper divisors (3589095).

1212011120233 is an equidigital number, since it uses as much as digits as its factorization.

1212011120233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589094.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1212011120233 its reverse (3320211102121), we get a palindrome (4532222222354).

The spelling of 1212011120233 in words is "one trillion, two hundred twelve billion, eleven million, one hundred twenty thousand, two hundred thirty-three".