1212501033 has 6 divisors (see below), whose sum is σ = 1751390394. Its totient is φ = 808334016.

The previous prime is 1212501007. The next prime is 1212501053. The reversal of 1212501033 is 3301052121.

It can be written as a sum of positive squares in only one way, i.e., 643535424 + 568965609 = 25368^2 + 23853^2 .

It is not a de Polignac number, because 1212501033 - 2⁹ = 1212500521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212500997 and 1212501015.

It is not an unprimeable number, because it can be changed into a prime (1212501053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67361160 + ... + 67361177.

It is an arithmetic number, because the mean of its divisors is an integer number (291898399).

Almost surely, 2^1212501033 is an apocalyptic number.

It is an amenable number.

1212501033 is a deficient number, since it is larger than the sum of its proper divisors (538889361).

1212501033 is a wasteful number, since it uses less digits than its factorization.

1212501033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134722343 (or 134722340 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1212501033 is about 34820.9855259727. The cubic root of 1212501033 is about 1066.3359205775.

Adding to 1212501033 its reverse (3301052121), we get a palindrome (4513553154).

The spelling of 1212501033 in words is "one billion, two hundred twelve million, five hundred one thousand, thirty-three".