1212033133 has 16 divisors (see below), whose sum is σ = 1283014656. Its totient is φ = 1143252720.

The previous prime is 1212033113. The next prime is 1212033143. The reversal of 1212033133 is 3313302121.

It is not a de Polignac number, because 1212033133 - 2⁵ = 1212033101 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 1212033133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212033113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381610 + ... + 384772.

It is an arithmetic number, because the mean of its divisors is an integer number (80188416).

Almost surely, 2^1212033133 is an apocalyptic number.

It is an amenable number.

1212033133 is a deficient number, since it is larger than the sum of its proper divisors (70981523).

1212033133 is a wasteful number, since it uses less digits than its factorization.

1212033133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3504.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1212033133 is about 34814.2662280853. The cubic root of 1212033133 is about 1066.1987378021.

Adding to 1212033133 its reverse (3313302121), we get a palindrome (4525335254).

The spelling of 1212033133 in words is "one billion, two hundred twelve million, thirty-three thousand, one hundred thirty-three".