21220013301 has 16 divisors (see below), whose sum is σ = 29064283584. Its totient is φ = 13761373824.

The previous prime is 21220013281. The next prime is 21220013303. The reversal of 21220013301 is 10331002212.

It is not a de Polignac number, because 21220013301 - 2¹⁰ = 21220012277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220013303) 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, 575641 + ... + 611393.

It is an arithmetic number, because the mean of its divisors is an integer number (1816517724).

Almost surely, 2^21220013301 is an apocalyptic number.

It is an amenable number.

21220013301 is a deficient number, since it is larger than the sum of its proper divisors (7844270283).

21220013301 is a wasteful number, since it uses less digits than its factorization.

21220013301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41140.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21220013301 its reverse (10331002212), we get a palindrome (31551015513).

The spelling of 21220013301 in words is "twenty-one billion, two hundred twenty million, thirteen thousand, three hundred one".