21031010201200 has 60 divisors (see below), whose sum is σ = 50546370941280. Its totient is φ = 8409179284480.

The previous prime is 21031010201197. The next prime is 21031010201233. The reversal of 21031010201200 is 210201013012.

It is a congruent number.

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, 9032584 + ... + 11119783.

It is an arithmetic number, because the mean of its divisors is an integer number (842439515688).

Almost surely, 2^{21031010201200} is an apocalyptic number.

21031010201200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21031010201200 is an abundant number, since it is smaller than the sum of its proper divisors (29515360740080).

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

21031010201200 is a wasteful number, since it uses less digits than its factorization.

21031010201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20154994 (or 20154983 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21031010201200 its reverse (210201013012), we get a palindrome (21241211214212).

The spelling of 21031010201200 in words is "twenty-one trillion, thirty-one billion, ten million, two hundred one thousand, two hundred".