212131120135132 has 48 divisors (see below), whose sum is σ = 405864082207584. Its totient is φ = 96212175840000.

The previous prime is 212131120135127. The next prime is 212131120135183. The reversal of 212131120135132 is 231531021131212.

It is a super-2 number, since 2×212131120135132² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212131120135132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1807265998 + ... + 1807383370.

It is an arithmetic number, because the mean of its divisors is an integer number (8455501712658).

Almost surely, 2^{212131120135132} is an apocalyptic number.

212131120135132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212131120135132 is a deficient number, since it is larger than the sum of its proper divisors (193732962072452).

212131120135132 is a wasteful number, since it uses less digits than its factorization.

212131120135132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206950 (or 206948 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

Adding to 212131120135132 its reverse (231531021131212), we get a palindrome (443662141266344).

The spelling of 212131120135132 in words is "two hundred twelve trillion, one hundred thirty-one billion, one hundred twenty million, one hundred thirty-five thousand, one hundred thirty-two".