121121112012001 has 8 divisors (see below), whose sum is σ = 121486616634240. Its totient is φ = 120755885027952.

The previous prime is 121121112011993. The next prime is 121121112012053. The reversal of 121121112012001 is 100210211121121.

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 121121112012001 - 2³ = 121121112011993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121121112012071) 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, 68535705 + ... + 70280758.

It is an arithmetic number, because the mean of its divisors is an integer number (15185827079280).

Almost surely, 2^{121121112012001} is an apocalyptic number.

It is an amenable number.

121121112012001 is a deficient number, since it is larger than the sum of its proper divisors (365504622239).

121121112012001 is a wasteful number, since it uses less digits than its factorization.

121121112012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138819095.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 121121112012001 its reverse (100210211121121), we get a palindrome (221331323133122).

The spelling of 121121112012001 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, one hundred twelve million, twelve thousand, one".