21220134301 has 8 divisors (see below), whose sum is σ = 22261046400. Its totient is φ = 20199834480.

The previous prime is 21220134269. The next prime is 21220134317. The reversal of 21220134301 is 10343102212.

It is a happy number.

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 21220134301 - 2⁵ = 21220134269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220134101) 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, 5150961 + ... + 5155078.

It is an arithmetic number, because the mean of its divisors is an integer number (2782630800).

Almost surely, 2^21220134301 is an apocalyptic number.

It is an amenable number.

21220134301 is a deficient number, since it is larger than the sum of its proper divisors (1040912099).

21220134301 is a wasteful number, since it uses less digits than its factorization.

21220134301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10306139.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21220134301 its reverse (10343102212), we get a palindrome (31563236513).

The spelling of 21220134301 in words is "twenty-one billion, two hundred twenty million, one hundred thirty-four thousand, three hundred one".