212020221200 has 60 divisors (see below), whose sum is σ = 509422871040. Its totient is φ = 84800714880.

The previous prime is 212020221173. The next prime is 212020221227. The reversal of 212020221200 is 2122020212.

It is an interprime number because it is at equal distance from previous prime (212020221173) and next prime (212020221227).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8819597 + ... + 8843603.

It is an arithmetic number, because the mean of its divisors is an integer number (8490381184).

Almost surely, 2^212020221200 is an apocalyptic number.

212020221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212020221200 is an abundant number, since it is smaller than the sum of its proper divisors (297402649840).

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

212020221200 is a wasteful number, since it uses less digits than its factorization.

212020221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46104 (or 46093 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 212020221200 its reverse (2122020212), we get a palindrome (214142241412).

The spelling of 212020221200 in words is "two hundred twelve billion, twenty million, two hundred twenty-one thousand, two hundred".