121112112001 has 8 divisors (see below), whose sum is σ = 121602596544. Its totient is φ = 120621855120.

The previous prime is 121112111987. The next prime is 121112112031. The reversal of 121112112001 is 100211211121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 121112112001 - 2⁹ = 121112111489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121112112031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052815 + ... + 1162171.

It is an arithmetic number, because the mean of its divisors is an integer number (15200324568).

Almost surely, 2^121112112001 is an apocalyptic number.

It is an amenable number.

121112112001 is a deficient number, since it is larger than the sum of its proper divisors (490484543).

121112112001 is a wasteful number, since it uses less digits than its factorization.

121112112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113831.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121112112001 its reverse (100211211121), we get a palindrome (221323323122).

The spelling of 121112112001 in words is "one hundred twenty-one billion, one hundred twelve million, one hundred twelve thousand, one".