212001221211200 has 84 divisors (see below), whose sum is σ = 533787028486800. Its totient is φ = 82828384074240.

The previous prime is 212001221211187. The next prime is 212001221211229. The reversal of 212001221211200 is 2112122100212.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1540637750 + ... + 1540775349.

Almost surely, 2^{212001221211200} is an apocalyptic number.

212001221211200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212001221211200 is an abundant number, since it is smaller than the sum of its proper divisors (321785807275600).

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

212001221211200 is a wasteful number, since it uses less digits than its factorization.

212001221211200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081413164 (or 3081413149 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212001221211200 its reverse (2112122100212), we get a palindrome (214113343311412).

The spelling of 212001221211200 in words is "two hundred twelve trillion, one billion, two hundred twenty-one million, two hundred eleven thousand, two hundred".