1217214036 has 72 divisors (see below), whose sum is σ = 3117820160. Its totient is φ = 400365504.

The previous prime is 1217214017. The next prime is 1217214077. The reversal of 1217214036 is 6304127121.

It is a super-2 number, since 2×1217214036² = 2963220018870818592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1716450 + ... + 1717158.

Almost surely, 2^1217214036 is an apocalyptic number.

It is an amenable number.

1217214036 is an abundant number, since it is smaller than the sum of its proper divisors (1900606124).

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

1217214036 is a wasteful number, since it uses less digits than its factorization.

1217214036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285 (or 1280 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1217214036 is about 34888.5946406558. The cubic root of 1217214036 is about 1067.7157535853.

The spelling of 1217214036 in words is "one billion, two hundred seventeen million, two hundred fourteen thousand, thirty-six".