21221130301 has 16 divisors (see below), whose sum is σ = 24534091008. Its totient is φ = 17979120000.

The previous prime is 21221130253. The next prime is 21221130313. The reversal of 21221130301 is 10303112212.

It is a cyclic number.

It is not a de Polignac number, because 21221130301 - 2⁷ = 21221130173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21221130101) 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, 399936 + ... + 449878.

It is an arithmetic number, because the mean of its divisors is an integer number (1533380688).

Almost surely, 2^21221130301 is an apocalyptic number.

It is an amenable number.

21221130301 is a deficient number, since it is larger than the sum of its proper divisors (3312960707).

21221130301 is a wasteful number, since it uses less digits than its factorization.

21221130301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50652.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21221130301 its reverse (10303112212), we get a palindrome (31524242513).

The spelling of 21221130301 in words is "twenty-one billion, two hundred twenty-one million, one hundred thirty thousand, three hundred one".