21303302202 has 48 divisors (see below), whose sum is σ = 56808810240. Its totient is φ = 5618452896.

The previous prime is 21303302179. The next prime is 21303302249. The reversal of 21303302202 is 20220330312.

It is a happy number.

21303302202 is a `hidden beast` number, since 2 + 130 + 330 + 2 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6501202 + ... + 6504477.

It is an arithmetic number, because the mean of its divisors is an integer number (1183516880).

Almost surely, 2^21303302202 is an apocalyptic number.

21303302202 is an abundant number, since it is smaller than the sum of its proper divisors (35505508038).

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

21303302202 is a wasteful number, since it uses less digits than its factorization.

21303302202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13005707 (or 13005704 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 21303302202 its reverse (20220330312), we get a palindrome (41523632514).

The spelling of 21303302202 in words is "twenty-one billion, three hundred three million, three hundred two thousand, two hundred two".