210021222312330 has 64 divisors (see below), whose sum is σ = 592171726140288. Its totient is φ = 46997756040960.

The previous prime is 210021222312299. The next prime is 210021222312331. The reversal of 210021222312330 is 33213222120012.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 210021222312330.

It is not an unprimeable number, because it can be changed into a prime (210021222312331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24477993649 + ... + 24478002228.

It is an arithmetic number, because the mean of its divisors is an integer number (9252683220942).

Almost surely, 2^{210021222312330} is an apocalyptic number.

210021222312330 is an abundant number, since it is smaller than the sum of its proper divisors (382150503827958).

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

210021222312330 is a wasteful number, since it uses less digits than its factorization.

210021222312330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48955995911.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 210021222312330 its reverse (33213222120012), we get a palindrome (243234444432342).

The spelling of 210021222312330 in words is "two hundred ten trillion, twenty-one billion, two hundred twenty-two million, three hundred twelve thousand, three hundred thirty".