212222212120 has 32 divisors (see below), whose sum is σ = 481962603600. Its totient is φ = 84095529088.

The previous prime is 212222212073. The next prime is 212222212127. The reversal of 212222212120 is 21212222212.

212222212120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212222212127) 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 7 ways as a sum of consecutive naturals, for example, 24788035 + ... + 24796594.

Almost surely, 2^212222212120 is an apocalyptic number.

212222212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212222212120 is an abundant number, since it is smaller than the sum of its proper divisors (269740391480).

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

212222212120 is a wasteful number, since it uses less digits than its factorization.

212222212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49584747 (or 49584743 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 212222212120 its reverse (21212222212), we get a palindrome (233434434332).

The spelling of 212222212120 in words is "two hundred twelve billion, two hundred twenty-two million, two hundred twelve thousand, one hundred twenty".