21302012301202 has 4 divisors (see below), whose sum is σ = 31953018451806. Its totient is φ = 10651006150600.

The previous prime is 21302012301191. The next prime is 21302012301203. The reversal of 21302012301202 is 20210321020312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10739128797721 + 10562883503481 = 3277061^2 + 3250059^2 .

It is a super-2 number, since 2×21302012301202² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21302012301202.

It is not an unprimeable number, because it can be changed into a prime (21302012301203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5325503075299 + ... + 5325503075302.

Almost surely, 2^{21302012301202} is an apocalyptic number.

21302012301202 is a deficient number, since it is larger than the sum of its proper divisors (10651006150604).

21302012301202 is a wasteful number, since it uses less digits than its factorization.

21302012301202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10651006150603.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21302012301202 its reverse (20210321020312), we get a palindrome (41512333321514).

The spelling of 21302012301202 in words is "twenty-one trillion, three hundred two billion, twelve million, three hundred one thousand, two hundred two".