20884535212 has 12 divisors (see below), whose sum is σ = 36634751776. Its totient is φ = 10417463280.

The previous prime is 20884535183. The next prime is 20884535213. The reversal of 20884535212 is 21253548802.

It is a super-2 number, since 2×20884535212² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20884535213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6199188 + ... + 6202555.

Almost surely, 2^20884535212 is an apocalyptic number.

It is an amenable number.

20884535212 is a deficient number, since it is larger than the sum of its proper divisors (15750216564).

20884535212 is a wasteful number, since it uses less digits than its factorization.

20884535212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12402168 (or 12402166 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The spelling of 20884535212 in words is "twenty billion, eight hundred eighty-four million, five hundred thirty-five thousand, two hundred twelve".