1215213112466 has 8 divisors (see below), whose sum is σ = 1823411694720. Its totient is φ = 607409214228.

The previous prime is 1215213112453. The next prime is 1215213112469. The reversal of 1215213112466 is 6642113125121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1215213112469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98663306 + ... + 98675621.

It is an arithmetic number, because the mean of its divisors is an integer number (227926461840).

Almost surely, 2^{1215213112466} is an apocalyptic number.

1215213112466 is a deficient number, since it is larger than the sum of its proper divisors (608198582254).

1215213112466 is a wasteful number, since it uses less digits than its factorization.

1215213112466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197342008.

The product of its digits is 17280, while the sum is 35.

Adding to 1215213112466 its reverse (6642113125121), we get a palindrome (7857326237587).

The spelling of 1215213112466 in words is "one trillion, two hundred fifteen billion, two hundred thirteen million, one hundred twelve thousand, four hundred sixty-six".