121222110011 has 16 divisors (see below), whose sum is σ = 126814723200. Its totient is φ = 115726800000.

The previous prime is 121222109999. The next prime is 121222110013. The reversal of 121222110011 is 110011222121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121222110011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121222110013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2172125 + ... + 2227233.

It is an arithmetic number, because the mean of its divisors is an integer number (7925920200).

Almost surely, 2^121222110011 is an apocalyptic number.

121222110011 is a deficient number, since it is larger than the sum of its proper divisors (5592613189).

121222110011 is a wasteful number, since it uses less digits than its factorization.

121222110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55990.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121222110011 its reverse (110011222121), we get a palindrome (231233332132).

The spelling of 121222110011 in words is "one hundred twenty-one billion, two hundred twenty-two million, one hundred ten thousand, eleven".