1213022112233 has 16 divisors (see below), whose sum is σ = 1227144162816. Its totient is φ = 1198947429120.

The previous prime is 1213022112227. The next prime is 1213022112287. The reversal of 1213022112233 is 3322112203121.

It is a cyclic number.

It is not a de Polignac number, because 1213022112233 - 2³⁸ = 938144205289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1213022112199 and 1213022112208.

It is not an unprimeable number, because it can be changed into a prime (1213022114233) 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 15 ways as a sum of consecutive naturals, for example, 139728653 + ... + 139737333.

It is an arithmetic number, because the mean of its divisors is an integer number (76696510176).

Almost surely, 2^{1213022112233} is an apocalyptic number.

It is an amenable number.

1213022112233 is a deficient number, since it is larger than the sum of its proper divisors (14122050583).

1213022112233 is a wasteful number, since it uses less digits than its factorization.

1213022112233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11224.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1213022112233 its reverse (3322112203121), we get a palindrome (4535134315354).

The spelling of 1213022112233 in words is "one trillion, two hundred thirteen billion, twenty-two million, one hundred twelve thousand, two hundred thirty-three".