20213003121200 has 60 divisors (see below), whose sum is σ = 51418312957080. Its totient is φ = 7609601172480.

The previous prime is 20213003121187. The next prime is 20213003121239. The reversal of 20213003121200 is 212130031202.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1486243430 + ... + 1486257029.

It is an arithmetic number, because the mean of its divisors is an integer number (856971882618).

Almost surely, 2^{20213003121200} is an apocalyptic number.

20213003121200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20213003121200 is an abundant number, since it is smaller than the sum of its proper divisors (31205309835880).

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

20213003121200 is a wasteful number, since it uses less digits than its factorization.

20213003121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2972500494 (or 2972500483 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20213003121200 its reverse (212130031202), we get a palindrome (20425133152402).

The spelling of 20213003121200 in words is "twenty trillion, two hundred thirteen billion, three million, one hundred twenty-one thousand, two hundred".