1213122033 has 12 divisors (see below), whose sum is σ = 1778441808. Its totient is φ = 796676760.

The previous prime is 1213122017. The next prime is 1213122059. The reversal of 1213122033 is 3302213121.

It is not a de Polignac number, because 1213122033 - 2⁴ = 1213122017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213121997 and 1213122015.

It is not an unprimeable number, because it can be changed into a prime (1213122073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1005303 + ... + 1006508.

It is an arithmetic number, because the mean of its divisors is an integer number (148203484).

Almost surely, 2^1213122033 is an apocalyptic number.

It is an amenable number.

1213122033 is a deficient number, since it is larger than the sum of its proper divisors (565319775).

1213122033 is a wasteful number, since it uses less digits than its factorization.

1213122033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011884 (or 2011881 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1213122033 is about 34829.9014210491. The cubic root of 1213122033 is about 1066.5179359793.

Adding to 1213122033 its reverse (3302213121), we get a palindrome (4515335154).

The spelling of 1213122033 in words is "one billion, two hundred thirteen million, one hundred twenty-two thousand, thirty-three".