21202321202 has 8 divisors (see below), whose sum is σ = 31808107056. Its totient is φ = 10599618852.

The previous prime is 21202321201. The next prime is 21202321211. The reversal of 21202321202 is 20212320212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21202321201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753608 + ... + 781235.

It is an arithmetic number, because the mean of its divisors is an integer number (3976013382).

Almost surely, 2^21202321202 is an apocalyptic number.

21202321202 is a deficient number, since it is larger than the sum of its proper divisors (10605785854).

21202321202 is a wasteful number, since it uses less digits than its factorization.

21202321202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541752.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 21202321202 its reverse (20212320212), we get a palindrome (41414641414).

The spelling of 21202321202 in words is "twenty-one billion, two hundred two million, three hundred twenty-one thousand, two hundred two".