121120122011 has 16 divisors (see below), whose sum is σ = 138641001408. Its totient is φ = 103653888000.

The previous prime is 121120121939. The next prime is 121120122017. The reversal of 121120122011 is 110221021121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121120122011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121120122017) 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, 13045691 + ... + 13054971.

It is an arithmetic number, because the mean of its divisors is an integer number (8665062588).

Almost surely, 2^121120122011 is an apocalyptic number.

121120122011 is a deficient number, since it is larger than the sum of its proper divisors (17520879397).

121120122011 is a wasteful number, since it uses less digits than its factorization.

121120122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12022.

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

Adding to 121120122011 its reverse (110221021121), we get a palindrome (231341143132).

The spelling of 121120122011 in words is "one hundred twenty-one billion, one hundred twenty million, one hundred twenty-two thousand, eleven".