210221221002 has 32 divisors (see below), whose sum is σ = 453343988160. Its totient is φ = 64603478400.

The previous prime is 210221220997. The next prime is 210221221027. The reversal of 210221221002 is 200122122012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1602624 + ... + 1728827.

It is an arithmetic number, because the mean of its divisors is an integer number (14166999630).

Almost surely, 2^210221221002 is an apocalyptic number.

210221221002 is an abundant number, since it is smaller than the sum of its proper divisors (243122767158).

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

210221221002 is a wasteful number, since it uses less digits than its factorization.

210221221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332278.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 210221221002 its reverse (200122122012), we get a palindrome (410343343014).

The spelling of 210221221002 in words is "two hundred ten billion, two hundred twenty-one million, two hundred twenty-one thousand, two".