1213213182 has 16 divisors (see below), whose sum is σ = 2428726032. Its totient is φ = 404021120.

The previous prime is 1213213181. The next prime is 1213213193. The reversal of 1213213182 is 2813123121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213213181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88923 + ... + 101654.

It is an arithmetic number, because the mean of its divisors is an integer number (151795377).

Almost surely, 2^1213213182 is an apocalyptic number.

1213213182 is an abundant number, since it is smaller than the sum of its proper divisors (1215512850).

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

1213213182 is a wasteful number, since it uses less digits than its factorization.

1213213182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191643.

The product of its digits is 576, while the sum is 24.

The square root of 1213213182 is about 34831.2098842403. The cubic root of 1213213182 is about 1066.5446465674.

The spelling of 1213213182 in words is "one billion, two hundred thirteen million, two hundred thirteen thousand, one hundred eighty-two".