121111100097 has 16 divisors (see below), whose sum is σ = 173911653888. Its totient is φ = 74526249600.

The previous prime is 121111100017. The next prime is 121111100119. The reversal of 121111100097 is 790001111121.

It is not a de Polignac number, because 121111100097 - 2¹¹ = 121111098049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121111100017) by changing a digit.

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, 880597 + ... + 1008797.

It is an arithmetic number, because the mean of its divisors is an integer number (10869478368).

Almost surely, 2^121111100097 is an apocalyptic number.

It is an amenable number.

121111100097 is a deficient number, since it is larger than the sum of its proper divisors (52800553791).

121111100097 is a wasteful number, since it uses less digits than its factorization.

121111100097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152440.

The product of its (nonzero) digits is 126, while the sum is 24.

The spelling of 121111100097 in words is "one hundred twenty-one billion, one hundred eleven million, one hundred thousand, ninety-seven".