210021100220202 has 32 divisors (see below), whose sum is σ = 420428386334400. Its totient is φ = 69942673266048.

The previous prime is 210021100220177. The next prime is 210021100220203. The reversal of 210021100220202 is 202022001120012.

It is not an unprimeable number, because it can be changed into a prime (210021100220203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207029049 + ... + 208041027.

It is an arithmetic number, because the mean of its divisors is an integer number (13138387072950).

Almost surely, 2^{210021100220202} is an apocalyptic number.

210021100220202 is an abundant number, since it is smaller than the sum of its proper divisors (210407286114198).

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

210021100220202 is a wasteful number, since it uses less digits than its factorization.

210021100220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043750.

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

Adding to 210021100220202 its reverse (202022001120012), we get a palindrome (412043101340214).

The spelling of 210021100220202 in words is "two hundred ten trillion, twenty-one billion, one hundred million, two hundred twenty thousand, two hundred two".