212201212220120 has 16 divisors (see below), whose sum is σ = 477452727495360. Its totient is φ = 84880484888032.

The previous prime is 212201212220113. The next prime is 212201212220177. The reversal of 212201212220120 is 21022212102212.

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

It is a junction number, because it is equal to n+sod(n) for n = 212201212220092 and 212201212220101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2652515152712 + ... + 2652515152791.

It is an arithmetic number, because the mean of its divisors is an integer number (29840795468460).

Almost surely, 2^{212201212220120} is an apocalyptic number.

212201212220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212201212220120 is an abundant number, since it is smaller than the sum of its proper divisors (265251515275240).

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

212201212220120 is a wasteful number, since it uses less digits than its factorization.

212201212220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5305030305514 (or 5305030305510 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 212201212220120 its reverse (21022212102212), we get a palindrome (233223424322332).

The spelling of 212201212220120 in words is "two hundred twelve trillion, two hundred one billion, two hundred twelve million, two hundred twenty thousand, one hundred twenty".