21200012100201 has 16 divisors (see below), whose sum is σ = 31831103213568. Its totient is φ = 12434024691600.

The previous prime is 21200012100193. The next prime is 21200012100209. The reversal of 21200012100201 is 10200121000212.

It is an interprime number because it is at equal distance from previous prime (21200012100193) and next prime (21200012100209).

It is not a de Polignac number, because 21200012100201 - 2³ = 21200012100193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21200012100209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10361686221 + ... + 10361688266.

It is an arithmetic number, because the mean of its divisors is an integer number (1989443950848).

Almost surely, 2^{21200012100201} is an apocalyptic number.

It is an amenable number.

21200012100201 is a deficient number, since it is larger than the sum of its proper divisors (10631091113367).

21200012100201 is a wasteful number, since it uses less digits than its factorization.

21200012100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20723374532.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21200012100201 its reverse (10200121000212), we get a palindrome (31400133100413).

The spelling of 21200012100201 in words is "twenty-one trillion, two hundred billion, twelve million, one hundred thousand, two hundred one".