210002221000 has 128 divisors (see below), whose sum is σ = 577315589760. Its totient is φ = 70490208000.

The previous prime is 210002220997. The next prime is 210002221007. The reversal of 210002221000 is 122200012.

210002221000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (210002221007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 591274 + ... + 877273.

It is an arithmetic number, because the mean of its divisors is an integer number (4510278045).

Almost surely, 2^210002221000 is an apocalyptic number.

210002221000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210002221000 is an abundant number, since it is smaller than the sum of its proper divisors (367313368760).

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

210002221000 is a wasteful number, since it uses less digits than its factorization.

210002221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468592 (or 1468578 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 210002221000 its reverse (122200012), we get a palindrome (210124421012).

The spelling of 210002221000 in words is "two hundred ten billion, two million, two hundred twenty-one thousand".