213515414212 has 12 divisors (see below), whose sum is σ = 379777417516. Its totient is φ = 105007580640.

The previous prime is 213515414141. The next prime is 213515414237. The reversal of 213515414212 is 212414515312.

It can be written as a sum of positive squares in 2 ways, for example, as 118345632196 + 95169782016 = 344014^2 + 308496^2 .

It is a super-2 number, since 2×213515414212² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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, 437531343 + ... + 437531830.

Almost surely, 2^213515414212 is an apocalyptic number.

It is an amenable number.

213515414212 is a deficient number, since it is larger than the sum of its proper divisors (166262003304).

213515414212 is a wasteful number, since it uses less digits than its factorization.

213515414212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875063238 (or 875063236 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

Adding to 213515414212 its reverse (212414515312), we get a palindrome (425929929524).

The spelling of 213515414212 in words is "two hundred thirteen billion, five hundred fifteen million, four hundred fourteen thousand, two hundred twelve".