21210123000201 has 16 divisors (see below), whose sum is σ = 29477992659264. Its totient is φ = 13552575562944.

The previous prime is 21210123000163. The next prime is 21210123000223. The reversal of 21210123000201 is 10200032101212.

It is not a de Polignac number, because 21210123000201 - 2¹⁷ = 21210122869129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21210123000701) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1425979050 + ... + 1425993923.

It is an arithmetic number, because the mean of its divisors is an integer number (1842374541204).

Almost surely, 2^{21210123000201} is an apocalyptic number.

It is an amenable number.

21210123000201 is a deficient number, since it is larger than the sum of its proper divisors (8267869659063).

21210123000201 is a wasteful number, since it uses less digits than its factorization.

21210123000201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2851973080.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21210123000201 its reverse (10200032101212), we get a palindrome (31410155101413).

The spelling of 21210123000201 in words is "twenty-one trillion, two hundred ten billion, one hundred twenty-three million, two hundred one", and thus it is an aban number.