121001011104 has 48 divisors (see below), whose sum is σ = 320438547072. Its totient is φ = 39976731648.

The previous prime is 121001011067. The next prime is 121001011141. The reversal of 121001011104 is 401110100121.

It is an interprime number because it is at equal distance from previous prime (121001011067) and next prime (121001011141).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 121001011104.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5566264 + ... + 5587959.

It is an arithmetic number, because the mean of its divisors is an integer number (6675803064).

Almost surely, 2^121001011104 is an apocalyptic number.

It is an amenable number.

121001011104 is an abundant number, since it is smaller than the sum of its proper divisors (199437535968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121001011104 is a wasteful number, since it uses less digits than its factorization.

121001011104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11154349 (or 11154341 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121001011104 its reverse (401110100121), we get a palindrome (522111111225).

The spelling of 121001011104 in words is "one hundred twenty-one billion, one million, eleven thousand, one hundred four".