121200100110011 has 32 divisors (see below), whose sum is σ = 137707340359680. Its totient is φ = 105746276563200.

The previous prime is 121200100109999. The next prime is 121200100110017. The reversal of 121200100110011 is 110011001002121.

It is not a de Polignac number, because 121200100110011 - 2⁶ = 121200100109947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121200100109974 and 121200100110001.

It is not an unprimeable number, because it can be changed into a prime (121200100110017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351271766 + ... + 351616628.

It is an arithmetic number, because the mean of its divisors is an integer number (4303354386240).

Almost surely, 2^{121200100110011} is an apocalyptic number.

121200100110011 is a deficient number, since it is larger than the sum of its proper divisors (16507240249669).

121200100110011 is a wasteful number, since it uses less digits than its factorization.

121200100110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348147.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 121200100110011 its reverse (110011001002121), we get a palindrome (231211101112132).

The spelling of 121200100110011 in words is "one hundred twenty-one trillion, two hundred billion, one hundred million, one hundred ten thousand, eleven".