212221032122 has 8 divisors (see below), whose sum is σ = 347270779872. Its totient is φ = 96464105500.

The previous prime is 212221032119. The next prime is 212221032137. The reversal of 212221032122 is 221230122212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 212221032094 and 212221032103.

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, 4823205254 + ... + 4823205297.

It is an arithmetic number, because the mean of its divisors is an integer number (43408847484).

Almost surely, 2^212221032122 is an apocalyptic number.

212221032122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212221032122 is a deficient number, since it is larger than the sum of its proper divisors (135049747750).

212221032122 is a wasteful number, since it uses less digits than its factorization.

212221032122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9646410564.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 212221032122 its reverse (221230122212), we get a palindrome (433451154334).

The spelling of 212221032122 in words is "two hundred twelve billion, two hundred twenty-one million, thirty-two thousand, one hundred twenty-two".