121201402331001 has 16 divisors (see below), whose sum is σ = 167640014793600. Its totient is φ = 77797384603008.

The previous prime is 121201402330951. The next prime is 121201402331021. The reversal of 121201402331001 is 100133204102121.

It is not a de Polignac number, because 121201402331001 - 2¹⁰ = 121201402329977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121201402331021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1940246716 + ... + 1940309181.

It is an arithmetic number, because the mean of its divisors is an integer number (10477500924600).

Almost surely, 2^{121201402331001} is an apocalyptic number.

It is an amenable number.

121201402331001 is a deficient number, since it is larger than the sum of its proper divisors (46438612462599).

121201402331001 is a wasteful number, since it uses less digits than its factorization.

121201402331001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3880556288.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 121201402331001 its reverse (100133204102121), we get a palindrome (221334606433122).

The spelling of 121201402331001 in words is "one hundred twenty-one trillion, two hundred one billion, four hundred two million, three hundred thirty-one thousand, one".