21220133302 has 8 divisors (see below), whose sum is σ = 31832024112. Its totient is φ = 10609458600.

The previous prime is 21220133287. The next prime is 21220133309. The reversal of 21220133302 is 20333102212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21220133302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220133309) by changing a digit.

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, 259074 + ... + 330997.

It is an arithmetic number, because the mean of its divisors is an integer number (3979003014).

Almost surely, 2^21220133302 is an apocalyptic number.

21220133302 is a deficient number, since it is larger than the sum of its proper divisors (10611890810).

21220133302 is a wasteful number, since it uses less digits than its factorization.

21220133302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608054.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21220133302 its reverse (20333102212), we get a palindrome (41553235514).

The spelling of 21220133302 in words is "twenty-one billion, two hundred twenty million, one hundred thirty-three thousand, three hundred two".