212222220232 has 64 divisors (see below), whose sum is σ = 448199884800. Its totient is φ = 93330792000.

The previous prime is 212222220229. The next prime is 212222220269. The reversal of 212222220232 is 232022222212.

212222220232 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 17919769 + ... + 17931607.

It is an arithmetic number, because the mean of its divisors is an integer number (7003123200).

Almost surely, 2^212222220232 is an apocalyptic number.

212222220232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212222220232 is an abundant number, since it is smaller than the sum of its proper divisors (235977664568).

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

212222220232 is a wasteful number, since it uses less digits than its factorization.

212222220232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18458 (or 18454 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 212222220232 its reverse (232022222212), we get a palindrome (444244442444).

The spelling of 212222220232 in words is "two hundred twelve billion, two hundred twenty-two million, two hundred twenty thousand, two hundred thirty-two".