21001201000010 has 64 divisors (see below), whose sum is σ = 48132733317120. Its totient is φ = 6406555917120.

The previous prime is 21001200999959. The next prime is 21001201000063. The reversal of 21001201000010 is 1000010210012.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 290115800 + ... + 290188179.

It is an arithmetic number, because the mean of its divisors is an integer number (752073958080).

Almost surely, 2^{21001201000010} is an apocalyptic number.

21001201000010 is an abundant number, since it is smaller than the sum of its proper divisors (27131532317110).

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

21001201000010 is a wasteful number, since it uses less digits than its factorization.

21001201000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580304051.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 21001201000010 its reverse (1000010210012), we get a palindrome (22001211210022).

The spelling of 21001201000010 in words is "twenty-one trillion, one billion, two hundred one million, ten", and thus it is an aban number.