21225310201 has 8 divisors (see below), whose sum is σ = 21656320704. Its totient is φ = 20797968240.

The previous prime is 21225310199. The next prime is 21225310217. The reversal of 21225310201 is 10201352212.

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 21225310201 - 2¹ = 21225310199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21225310291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905446 + ... + 928591.

It is an arithmetic number, because the mean of its divisors is an integer number (2707040088).

Almost surely, 2^21225310201 is an apocalyptic number.

It is an amenable number.

21225310201 is a deficient number, since it is larger than the sum of its proper divisors (431010503).

21225310201 is a wasteful number, since it uses less digits than its factorization.

21225310201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834271.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 21225310201 its reverse (10201352212), we get a palindrome (31426662413).

The spelling of 21225310201 in words is "twenty-one billion, two hundred twenty-five million, three hundred ten thousand, two hundred one".