211221000200012 has 24 divisors (see below), whose sum is σ = 403240638681552. Its totient is φ = 96009415214400.

The previous prime is 211221000199969. The next prime is 211221000200081. The reversal of 211221000200012 is 210002000122112.

211221000200012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211221000200012² (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 211221000200012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34418138 + ... + 40088030.

It is an arithmetic number, because the mean of its divisors is an integer number (16801693278398).

Almost surely, 2^{211221000200012} is an apocalyptic number.

211221000200012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211221000200012 is a deficient number, since it is larger than the sum of its proper divisors (192019638481540).

211221000200012 is a wasteful number, since it uses less digits than its factorization.

211221000200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6516569 (or 6516567 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 211221000200012 its reverse (210002000122112), we get a palindrome (421223000322124).

It can be divided in two parts, 2112 and 21000200012, that multiplied together give a palindrome (44352422425344).

The spelling of 211221000200012 in words is "two hundred eleven trillion, two hundred twenty-one billion, two hundred thousand, twelve".