212222020221200 has 120 divisors (see below), whose sum is σ = 556224921514080. Its totient is φ = 77170214732800.

The previous prime is 212222020221187. The next prime is 212222020221223. The reversal of 212222020221200 is 2122020222212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 253625111 + ... + 254460489.

It is an arithmetic number, because the mean of its divisors is an integer number (4635207679284).

Almost surely, 2^{212222020221200} is an apocalyptic number.

212222020221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212222020221200 is an abundant number, since it is smaller than the sum of its proper divisors (344002901292880).

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

212222020221200 is a wasteful number, since it uses less digits than its factorization.

212222020221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893145 (or 893134 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 212222020221200 its reverse (2122020222212), we get a palindrome (214344040443412).

The spelling of 212222020221200 in words is "two hundred twelve trillion, two hundred twenty-two billion, twenty million, two hundred twenty-one thousand, two hundred".