210022002 has 24 divisors (see below), whose sum is σ = 470740140. Its totient is φ = 67593120.

The previous prime is 210021983. The next prime is 210022037. The reversal of 210022002 is 200220012.

It can be written as a sum of positive squares in 2 ways, for example, as 203319081 + 6702921 = 14259^2 + 2589^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200649 + ... + 201692.

Almost surely, 2^210022002 is an apocalyptic number.

210022002 is an abundant number, since it is smaller than the sum of its proper divisors (260718138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210022002 is a wasteful number, since it uses less digits than its factorization.

210022002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402378 (or 402375 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 210022002 is about 14492.1358674282. The cubic root of 210022002 is about 594.4129529912.

Adding to 210022002 its reverse (200220012), we get a palindrome (410242014).

The spelling of 210022002 in words is "two hundred ten million, twenty-two thousand, two".