21204214202 has 8 divisors (see below), whose sum is σ = 31849363200. Its totient is φ = 10587759804.

The previous prime is 21204214201. The next prime is 21204214217. The reversal of 21204214202 is 20241240212.

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 (21204214201) 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, 7171802 + ... + 7174757.

It is an arithmetic number, because the mean of its divisors is an integer number (3981170400).

Almost surely, 2^21204214202 is an apocalyptic number.

21204214202 is a deficient number, since it is larger than the sum of its proper divisors (10645148998).

21204214202 is a wasteful number, since it uses less digits than its factorization.

21204214202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14347300.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 21204214202 its reverse (20241240212), we get a palindrome (41445454414).

The spelling of 21204214202 in words is "twenty-one billion, two hundred four million, two hundred fourteen thousand, two hundred two".