212154628132 has 24 divisors (see below), whose sum is σ = 372417091200. Its totient is φ = 105750100896.

The previous prime is 212154628117. The next prime is 212154628177. The reversal of 212154628132 is 231826451212.

It is a junction number, because it is equal to n+sod(n) for n = 212154628091 and 212154628100.

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 7 ways as a sum of consecutive naturals, for example, 2391669 + ... + 2478787.

It is an arithmetic number, because the mean of its divisors is an integer number (15517378800).

Almost surely, 2^212154628132 is an apocalyptic number.

It is an amenable number.

212154628132 is a deficient number, since it is larger than the sum of its proper divisors (160262463068).

212154628132 is a wasteful number, since it uses less digits than its factorization.

212154628132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88995 (or 88993 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The spelling of 212154628132 in words is "two hundred twelve billion, one hundred fifty-four million, six hundred twenty-eight thousand, one hundred thirty-two".