210221011100012 has 12 divisors (see below), whose sum is σ = 401331021191016. Its totient is φ = 95555005045440.

The previous prime is 210221011099997. The next prime is 210221011100167. The reversal of 210221011100012 is 210001110122012.

It is a super-2 number, since 2×210221011100012² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210221011100012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2388875126093 + ... + 2388875126180.

It is an arithmetic number, because the mean of its divisors is an integer number (33444251765918).

Almost surely, 2^{210221011100012} is an apocalyptic number.

210221011100012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210221011100012 is a deficient number, since it is larger than the sum of its proper divisors (191110010091004).

210221011100012 is a wasteful number, since it uses less digits than its factorization.

210221011100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4777750252288 (or 4777750252286 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210221011100012 its reverse (210001110122012), we get a palindrome (420222121222024).

The spelling of 210221011100012 in words is "two hundred ten trillion, two hundred twenty-one billion, eleven million, one hundred thousand, twelve".