21000201210202 has 8 divisors (see below), whose sum is σ = 31500491824800. Its totient is φ = 10500037268604.

The previous prime is 21000201210179. The next prime is 21000201210257. The reversal of 21000201210202 is 20201210200012.

It is a happy number.

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, 31252702 + ... + 31917577.

It is an arithmetic number, because the mean of its divisors is an integer number (3937561478100).

Almost surely, 2^{21000201210202} is an apocalyptic number.

21000201210202 is a deficient number, since it is larger than the sum of its proper divisors (10500290614598).

21000201210202 is a wasteful number, since it uses less digits than its factorization.

21000201210202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63336500.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21000201210202 its reverse (20201210200012), we get a palindrome (41201411410214).

The spelling of 21000201210202 in words is "twenty-one trillion, two hundred one million, two hundred ten thousand, two hundred two".