21412206201 has 16 divisors (see below), whose sum is σ = 29900851200. Its totient is φ = 13603764240.

The previous prime is 21412206181. The next prime is 21412206209. The reversal of 21412206201 is 10260221412.

It is not a de Polignac number, because 21412206201 - 2¹⁷ = 21412075129 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21412206209) 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, 553851 + ... + 591248.

It is an arithmetic number, because the mean of its divisors is an integer number (1868803200).

Almost surely, 2^21412206201 is an apocalyptic number.

It is an amenable number.

21412206201 is a deficient number, since it is larger than the sum of its proper divisors (8488644999).

21412206201 is a wasteful number, since it uses less digits than its factorization.

21412206201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145396.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21412206201 its reverse (10260221412), we get a palindrome (31672427613).

The spelling of 21412206201 in words is "twenty-one billion, four hundred twelve million, two hundred six thousand, two hundred one".