21000201010012 has 24 divisors (see below), whose sum is σ = 42012130900320. Its totient is φ = 8997572815680.

The previous prime is 21000201010003. The next prime is 21000201010051. The reversal of 21000201010012 is 21001010200012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104620087 + ... + 104820622.

It is an arithmetic number, because the mean of its divisors is an integer number (1750505454180).

Almost surely, 2^{21000201010012} is an apocalyptic number.

It is an amenable number.

21000201010012 is an abundant number, since it is smaller than the sum of its proper divisors (21011929890308).

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

21000201010012 is a wasteful number, since it uses less digits than its factorization.

21000201010012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209444301 (or 209444299 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 21000201010012 its reverse (21001010200012), we get a palindrome (42001211210024).

The spelling of 21000201010012 in words is "twenty-one trillion, two hundred one million, ten thousand, twelve".