21210102201 has 8 divisors (see below), whose sum is σ = 28282268160. Its totient is φ = 14139002192.

The previous prime is 21210102197. The next prime is 21210102217. The reversal of 21210102201 is 10220101212.

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

It is a cyclic number.

It is not a de Polignac number, because 21210102201 - 2² = 21210102197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21210101201) 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, 218841 + ... + 300518.

It is an arithmetic number, because the mean of its divisors is an integer number (3535283520).

Almost surely, 2^21210102201 is an apocalyptic number.

It is an amenable number.

21210102201 is a deficient number, since it is larger than the sum of its proper divisors (7072165959).

21210102201 is a wasteful number, since it uses less digits than its factorization.

21210102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532975.

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

Adding to 21210102201 its reverse (10220101212), we get a palindrome (31430203413).

The spelling of 21210102201 in words is "twenty-one billion, two hundred ten million, one hundred two thousand, two hundred one".