21232220302 has 8 divisors (see below), whose sum is σ = 31866503616. Its totient is φ = 10610052432.

The previous prime is 21232220279. The next prime is 21232220459. The reversal of 21232220302 is 20302223212.

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 21232220302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3024478 + ... + 3031489.

It is an arithmetic number, because the mean of its divisors is an integer number (3983312952).

Almost surely, 2^21232220302 is an apocalyptic number.

21232220302 is a deficient number, since it is larger than the sum of its proper divisors (10634283314).

21232220302 is a wasteful number, since it uses less digits than its factorization.

21232220302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6057722.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 21232220302 its reverse (20302223212), we get a palindrome (41534443514).

The spelling of 21232220302 in words is "twenty-one billion, two hundred thirty-two million, two hundred twenty thousand, three hundred two".