121003122111 has 16 divisors (see below), whose sum is σ = 165819730944. Its totient is φ = 78449495904.

The previous prime is 121003122067. The next prime is 121003122139. The reversal of 121003122111 is 111221300121.

It is not a de Polignac number, because 121003122111 - 2⁶ = 121003122047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121003124111) 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, 2710915 + ... + 2755188.

It is an arithmetic number, because the mean of its divisors is an integer number (10363733184).

Almost surely, 2^121003122111 is an apocalyptic number.

121003122111 is a deficient number, since it is larger than the sum of its proper divisors (44816608833).

121003122111 is a wasteful number, since it uses less digits than its factorization.

121003122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5466310.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 121003122111 its reverse (111221300121), we get a palindrome (232224422232).

The spelling of 121003122111 in words is "one hundred twenty-one billion, three million, one hundred twenty-two thousand, one hundred eleven".