122121213222 has 64 divisors (see below), whose sum is σ = 256969713600. Its totient is φ = 38634516480.

The previous prime is 122121213217. The next prime is 122121213233. The reversal of 122121213222 is 222312121221.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 24377854 + ... + 24382862.

It is an arithmetic number, because the mean of its divisors is an integer number (4015151775).

Almost surely, 2^122121213222 is an apocalyptic number.

122121213222 is an abundant number, since it is smaller than the sum of its proper divisors (134848500378).

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

122121213222 is a wasteful number, since it uses less digits than its factorization.

122121213222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7401.

The product of its digits is 384, while the sum is 21.

Adding to 122121213222 its reverse (222312121221), we get a palindrome (344433334443).

The spelling of 122121213222 in words is "one hundred twenty-two billion, one hundred twenty-one million, two hundred thirteen thousand, two hundred twenty-two".