202101210002 has 8 divisors (see below), whose sum is σ = 303154112700. Its totient is φ = 101049839104.

The previous prime is 202101209987. The next prime is 202101210023. The reversal of 202101210002 is 200012101202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 196985956561 + 5115253441 = 443831^2 + 71521^2 .

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, 40574 + ... + 637062.

Almost surely, 2^202101210002 is an apocalyptic number.

202101210002 is a deficient number, since it is larger than the sum of its proper divisors (101052902698).

202101210002 is a wasteful number, since it uses less digits than its factorization.

202101210002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765900.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202101210002 its reverse (200012101202), we get a palindrome (402113311204).

The spelling of 202101210002 in words is "two hundred two billion, one hundred one million, two hundred ten thousand, two".