212221022220000 has 360 divisors, whose sum is σ = 782069068957176. Its totient is φ = 56592271296000.

The previous prime is 212221022219993. The next prime is 212221022220019. The reversal of 212221022220000 is 22220122212.

212221022220000 is a `hidden beast` number, since 21 + 2 + 221 + 0 + 222 + 200 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 16973439 + ... + 26693438.

Almost surely, 2^{212221022220000} is an apocalyptic number.

212221022220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212221022220000 is an abundant number, since it is smaller than the sum of its proper divisors (569848046737176).

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

212221022220000 is an frugal number, since it uses more digits than its factorization.

212221022220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43666922 (or 43666887 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 212221022220000 its reverse (22220122212), we get a palindrome (212243242342212).

The spelling of 212221022220000 in words is "two hundred twelve trillion, two hundred twenty-one billion, twenty-two million, two hundred twenty thousand".