212512322333145 has 64 divisors (see below), whose sum is σ = 351141939763200. Its totient is φ = 109635715123200.

The previous prime is 212512322333041. The next prime is 212512322333147. The reversal of 212512322333145 is 541333223215212.

It is not a de Polignac number, because 212512322333145 - 2⁸ = 212512322332889 is a prime.

It is a super-2 number, since 2×212512322333145² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212512322333147) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13569516615 + ... + 13569532275.

It is an arithmetic number, because the mean of its divisors is an integer number (5486592808800).

Almost surely, 2^{212512322333145} is an apocalyptic number.

It is an amenable number.

212512322333145 is a deficient number, since it is larger than the sum of its proper divisors (138629617430055).

212512322333145 is a wasteful number, since it uses less digits than its factorization.

212512322333145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26626.

The product of its digits is 259200, while the sum is 39.

Adding to 212512322333145 its reverse (541333223215212), we get a palindrome (753845545548357).

The spelling of 212512322333145 in words is "two hundred twelve trillion, five hundred twelve billion, three hundred twenty-two million, three hundred thirty-three thousand, one hundred forty-five".