212110202222120 has 16 divisors (see below), whose sum is σ = 477247954999860. Its totient is φ = 84844080888832.

The previous prime is 212110202222081. The next prime is 212110202222129. The reversal of 212110202222120 is 21222202011212.

It can be written as a sum of positive squares in 2 ways, for example, as 212040602284996 + 69599937124 = 14561614^2 + 263818^2 .

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 = 212110202222092 and 212110202222101.

It is not an unprimeable number, because it can be changed into a prime (212110202222129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2651377527737 + ... + 2651377527816.

Almost surely, 2^{212110202222120} is an apocalyptic number.

212110202222120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212110202222120 is an abundant number, since it is smaller than the sum of its proper divisors (265137752777740).

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

212110202222120 is a wasteful number, since it uses less digits than its factorization.

212110202222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5302755055564 (or 5302755055560 counting only the distinct ones).

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

Adding to 212110202222120 its reverse (21222202011212), we get a palindrome (233332404233332).

The spelling of 212110202222120 in words is "two hundred twelve trillion, one hundred ten billion, two hundred two million, two hundred twenty-two thousand, one hundred twenty".