1217133012 has 12 divisors (see below), whose sum is σ = 2839977056. Its totient is φ = 405711000.

The previous prime is 1217132993. The next prime is 1217133031. The reversal of 1217133012 is 2103317121.

It is a happy number.

1217133012 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1217132993) and next prime (1217133031).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1217133012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50713864 + ... + 50713887.

Almost surely, 2^1217133012 is an apocalyptic number.

1217133012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1217133012 is an abundant number, since it is smaller than the sum of its proper divisors (1622844044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1217133012 is a wasteful number, since it uses less digits than its factorization.

1217133012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101427758 (or 101427756 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 1217133012 is about 34887.4334395639. The cubic root of 1217133012 is about 1067.6920621834.

The spelling of 1217133012 in words is "one billion, two hundred seventeen million, one hundred thirty-three thousand, twelve".