20013230221002 has 16 divisors (see below), whose sum is σ = 44473844935680. Its totient is φ = 6671076740316.

The previous prime is 20013230220889. The next prime is 20013230221013. The reversal of 20013230221002 is 20012203231002.

20013230221002 is a `hidden beast` number, since 20 + 0 + 132 + 302 + 210 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185307687178 + ... + 185307687285.

It is an arithmetic number, because the mean of its divisors is an integer number (2779615308480).

Almost surely, 2^{20013230221002} is an apocalyptic number.

20013230221002 is an abundant number, since it is smaller than the sum of its proper divisors (24460614714678).

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

20013230221002 is a wasteful number, since it uses less digits than its factorization.

20013230221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370615374474 (or 370615374468 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20013230221002 its reverse (20012203231002), we get a palindrome (40025433452004).

The spelling of 20013230221002 in words is "twenty trillion, thirteen billion, two hundred thirty million, two hundred twenty-one thousand, two".