122121221122 has 16 divisors (see below), whose sum is σ = 185507784000. Its totient is φ = 60289978320.

The previous prime is 122121221119. The next prime is 122121221141. The reversal of 122121221122 is 221122121221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 122121221122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1118997 + ... + 1223272.

It is an arithmetic number, because the mean of its divisors is an integer number (11594236500).

Almost surely, 2^122121221122 is an apocalyptic number.

122121221122 is a deficient number, since it is larger than the sum of its proper divisors (63386562878).

122121221122 is a wasteful number, since it uses less digits than its factorization.

122121221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342601.

The product of its digits is 128, while the sum is 19.

Adding to 122121221122 its reverse (221122121221), we get a palindrome (343243342343).

Subtracting 122121221122 from its reverse (221122121221), we obtain a palindrome (99000900099).

The spelling of 122121221122 in words is "one hundred twenty-two billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-two".