212201222022220 has 24 divisors (see below), whose sum is σ = 447955668695808. Its totient is φ = 84436088342400.

The previous prime is 212201222022199. The next prime is 212201222022241. The reversal of 212201222022220 is 22220222102212.

It is an interprime number because it is at equal distance from previous prime (212201222022199) and next prime (212201222022241).

It is a junction number, because it is equal to n+sod(n) for n = 212201222022191 and 212201222022200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27775025241 + ... + 27775032880.

It is an arithmetic number, because the mean of its divisors is an integer number (18664819528992).

Almost surely, 2^{212201222022220} is an apocalyptic number.

212201222022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212201222022220 is an abundant number, since it is smaller than the sum of its proper divisors (235754446673588).

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

212201222022220 is a wasteful number, since it uses less digits than its factorization.

212201222022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55550058321 (or 55550058319 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 212201222022220 its reverse (22220222102212), we get a palindrome (234421444124432).

The spelling of 212201222022220 in words is "two hundred twelve trillion, two hundred one billion, two hundred twenty-two million, twenty-two thousand, two hundred twenty".