21211330301 has 16 divisors (see below), whose sum is σ = 24674492160. Its totient is φ = 17858319360.

The previous prime is 21211330247. The next prime is 21211330313. The reversal of 21211330301 is 10303311212.

It is not a de Polignac number, because 21211330301 - 2⁶ = 21211330237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21211330301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21211330391) 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, 54365 + ... + 213021.

It is an arithmetic number, because the mean of its divisors is an integer number (1542155760).

Almost surely, 2^21211330301 is an apocalyptic number.

It is an amenable number.

21211330301 is a deficient number, since it is larger than the sum of its proper divisors (3463161859).

21211330301 is a wasteful number, since it uses less digits than its factorization.

21211330301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159004.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21211330301 its reverse (10303311212), we get a palindrome (31514641513).

The spelling of 21211330301 in words is "twenty-one billion, two hundred eleven million, three hundred thirty thousand, three hundred one".