121121121122 has 32 divisors (see below), whose sum is σ = 185901091200. Its totient is φ = 59167438848.

The previous prime is 121121121103. The next prime is 121121121133. The reversal of 121121121122 is 221121121121.

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 121121121122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26800379 + ... + 26804897.

It is an arithmetic number, because the mean of its divisors is an integer number (5809409100).

Almost surely, 2^121121121122 is an apocalyptic number.

121121121122 is a deficient number, since it is larger than the sum of its proper divisors (64779970078).

121121121122 is a wasteful number, since it uses less digits than its factorization.

121121121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5930.

The product of its digits is 32, while the sum is 17.

Adding to 121121121122 its reverse (221121121121), we get a palindrome (342242242243).

Subtracting 121121121122 from its reverse (221121121121), we obtain a palindrome (99999999999).

The spelling of 121121121122 in words is "one hundred twenty-one billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred twenty-two".