121101112001 has 8 divisors (see below), whose sum is σ = 122094320640. Its totient is φ = 120108523248.

The previous prime is 121101111983. The next prime is 121101112007. The reversal of 121101112001 is 100211101121.

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-121101112001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121101112007) 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, 241490 + ... + 548196.

It is an arithmetic number, because the mean of its divisors is an integer number (15261790080).

Almost surely, 2^121101112001 is an apocalyptic number.

It is an amenable number.

121101112001 is a deficient number, since it is larger than the sum of its proper divisors (993208639).

121101112001 is a wasteful number, since it uses less digits than its factorization.

121101112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309943.

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

Adding to 121101112001 its reverse (100211101121), we get a palindrome (221312213122).

The spelling of 121101112001 in words is "one hundred twenty-one billion, one hundred one million, one hundred twelve thousand, one".