21210211202 has 8 divisors (see below), whose sum is σ = 31932717312. Its totient is φ = 10565972100.

The previous prime is 21210211123. The next prime is 21210211289. The reversal of 21210211202 is 20211201212.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19566074 + ... + 19567157.

It is an arithmetic number, because the mean of its divisors is an integer number (3991589664).

Almost surely, 2^21210211202 is an apocalyptic number.

21210211202 is a deficient number, since it is larger than the sum of its proper divisors (10722506110).

21210211202 is a wasteful number, since it uses less digits than its factorization.

21210211202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39133504.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21210211202 its reverse (20211201212), we get a palindrome (41421412414).

The spelling of 21210211202 in words is "twenty-one billion, two hundred ten million, two hundred eleven thousand, two hundred two".