21211210200201 has 8 divisors (see below), whose sum is σ = 32321844114624. Its totient is φ = 12120691542960.

The previous prime is 21211210200181. The next prime is 21211210200227. The reversal of 21211210200201 is 10200201211212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21211210200201 - 2⁷ = 21211210200073 is a prime.

It is a super-2 number, since 2×21211210200201² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21211210202201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505028814270 + ... + 505028814311.

It is an arithmetic number, because the mean of its divisors is an integer number (4040230514328).

Almost surely, 2^{21211210200201} is an apocalyptic number.

21211210200201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21211210200201 is a deficient number, since it is larger than the sum of its proper divisors (11110633914423).

21211210200201 is a wasteful number, since it uses less digits than its factorization.

21211210200201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010057628591.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21211210200201 its reverse (10200201211212), we get a palindrome (31411411411413).

The spelling of 21211210200201 in words is "twenty-one trillion, two hundred eleven billion, two hundred ten million, two hundred thousand, two hundred one".