21301202 has 16 divisors (see below), whose sum is σ = 34685952. Its totient is φ = 9752400.

The previous prime is 21301201. The next prime is 21301219. The reversal of 21301202 is 20210312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21301201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77 + ... + 6527.

It is an arithmetic number, because the mean of its divisors is an integer number (2167872).

Almost surely, 2^21301202 is an apocalyptic number.

21301202 is a deficient number, since it is larger than the sum of its proper divisors (13384750).

21301202 is a wasteful number, since it uses less digits than its factorization.

21301202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6593.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 21301202 is about 4615.3225239413. The cubic root of 21301202 is about 277.2051983864.

Adding to 21301202 its reverse (20210312), we get a palindrome (41511514).

The spelling of 21301202 in words is "twenty-one million, three hundred one thousand, two hundred two".