121112011001 has 8 divisors (see below), whose sum is σ = 123548565504. Its totient is φ = 118699701120.

The previous prime is 121112010979. The next prime is 121112011043. The reversal of 121112011001 is 100110211121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121112011001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121112011051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6051065 + ... + 6071046.

It is an arithmetic number, because the mean of its divisors is an integer number (15443570688).

Almost surely, 2^121112011001 is an apocalyptic number.

It is an amenable number.

121112011001 is a deficient number, since it is larger than the sum of its proper divisors (2436554503).

121112011001 is a wasteful number, since it uses less digits than its factorization.

121112011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12122311.

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

Adding to 121112011001 its reverse (100110211121), we get a palindrome (221222222122).

The spelling of 121112011001 in words is "one hundred twenty-one billion, one hundred twelve million, eleven thousand, one".