210002101020002 has 4 divisors (see below), whose sum is σ = 315003151530006. Its totient is φ = 105001050510000.

The previous prime is 210002101019983. The next prime is 210002101020059. The reversal of 210002101020002 is 200020101200012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 194988576196561 + 15013524823441 = 13963831^2 + 3874729^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52500525254999 + ... + 52500525255002.

Almost surely, 2^{210002101020002} is an apocalyptic number.

210002101020002 is a deficient number, since it is larger than the sum of its proper divisors (105001050510004).

210002101020002 is a wasteful number, since it uses less digits than its factorization.

210002101020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105001050510003.

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

Adding to 210002101020002 its reverse (200020101200012), we get a palindrome (410022202220014).

The spelling of 210002101020002 in words is "two hundred ten trillion, two billion, one hundred one million, twenty thousand, two".