212221220300 has 36 divisors (see below), whose sum is σ = 467393496360. Its totient is φ = 83621493120.

The previous prime is 212221220297. The next prime is 212221220329. The reversal of 212221220300 is 3022122212.

It is a super-2 number, since 2×212221220300² (a number of 23 digits) contains 22 as substring.

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, 15830705 + ... + 15844104.

Almost surely, 2^212221220300 is an apocalyptic number.

212221220300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212221220300 is an abundant number, since it is smaller than the sum of its proper divisors (255172276060).

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

212221220300 is a wasteful number, since it uses less digits than its factorization.

212221220300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31674890 (or 31674883 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 212221220300 its reverse (3022122212), we get a palindrome (215243342512).

The spelling of 212221220300 in words is "two hundred twelve billion, two hundred twenty-one million, two hundred twenty thousand, three hundred".