21220201302 has 8 divisors (see below), whose sum is σ = 42440402616. Its totient is φ = 7073400432.

The previous prime is 21220201253. The next prime is 21220201351. The reversal of 21220201302 is 20310202212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21220201253) and next prime (21220201351).

It is a sphenic number, since it is the product of 3 distinct primes.

21220201302 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1768350103 + ... + 1768350114.

It is an arithmetic number, because the mean of its divisors is an integer number (5305050327).

Almost surely, 2^21220201302 is an apocalyptic number.

21220201302 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21220201302 is a wasteful number, since it uses less digits than its factorization.

21220201302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3536700222.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 21220201302 its reverse (20310202212), we get a palindrome (41530403514).

The spelling of 21220201302 in words is "twenty-one billion, two hundred twenty million, two hundred one thousand, three hundred two".