121201011220001 has 8 divisors (see below), whose sum is σ = 124020241144800. Its totient is φ = 118381808647872.

The previous prime is 121201011219983. The next prime is 121201011220021. The reversal of 121201011220001 is 100022110102121.

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 121201011220001 - 2¹⁰ = 121201011218977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121201011220021) 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, 2266361 + ... + 15733353.

It is an arithmetic number, because the mean of its divisors is an integer number (15502530143100).

Almost surely, 2^{121201011220001} is an apocalyptic number.

It is an amenable number.

121201011220001 is a deficient number, since it is larger than the sum of its proper divisors (2819229924799).

121201011220001 is a wasteful number, since it uses less digits than its factorization.

121201011220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13676335.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121201011220001 its reverse (100022110102121), we get a palindrome (221223121322122).

The spelling of 121201011220001 in words is "one hundred twenty-one trillion, two hundred one billion, eleven million, two hundred twenty thousand, one".