20012202019992 has 96 divisors (see below), whose sum is σ = 61914336007680. Its totient is φ = 5277943382400.

The previous prime is 20012202019991. The next prime is 20012202020033. The reversal of 20012202019992 is 29991020221002.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 20012202019992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012202019991) 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 23 ways as a sum of consecutive naturals, for example, 352398384 + ... + 352455167.

It is an arithmetic number, because the mean of its divisors is an integer number (644941000080).

Almost surely, 2^{20012202019992} is an apocalyptic number.

It is an amenable number.

20012202019992 is an abundant number, since it is smaller than the sum of its proper divisors (41902133987688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20012202019992 is a wasteful number, since it uses less digits than its factorization.

20012202019992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704853593 (or 704853576 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The spelling of 20012202019992 in words is "twenty trillion, twelve billion, two hundred two million, nineteen thousand, nine hundred ninety-two".