21202301012 has 12 divisors (see below), whose sum is σ = 38383476180. Its totient is φ = 10235593536.

The previous prime is 21202300993. The next prime is 21202301017. The reversal of 21202301012 is 21010320212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10355911696 + 10846389316 = 101764^2 + 104146^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202301017) 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, 91389113 + ... + 91389344.

It is an arithmetic number, because the mean of its divisors is an integer number (3198623015).

Almost surely, 2^21202301012 is an apocalyptic number.

It is an amenable number.

21202301012 is a deficient number, since it is larger than the sum of its proper divisors (17181175168).

21202301012 is a wasteful number, since it uses less digits than its factorization.

21202301012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182778490 (or 182778488 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21202301012 its reverse (21010320212), we get a palindrome (42212621224).

The spelling of 21202301012 in words is "twenty-one billion, two hundred two million, three hundred one thousand, twelve".