121001012101201 has 8 divisors (see below), whose sum is σ = 121099325559464. Its totient is φ = 120902734408320.

The previous prime is 121001012101171. The next prime is 121001012101217. The reversal of 121001012101201 is 102101210100121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9067807238400 + 111933204862801 = 3011280^2 + 10579849^2 .

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 121001012101201 - 2¹¹ = 121001012099153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121001010101201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2170140 + ... + 15707053.

It is an arithmetic number, because the mean of its divisors is an integer number (15137415694933).

Almost surely, 2^{121001012101201} is an apocalyptic number.

It is an amenable number.

121001012101201 is a deficient number, since it is larger than the sum of its proper divisors (98313458263).

121001012101201 is a wasteful number, since it uses less digits than its factorization.

121001012101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17882691.

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

Adding to 121001012101201 its reverse (102101210100121), we get a palindrome (223102222201322).

The spelling of 121001012101201 in words is "one hundred twenty-one trillion, one billion, twelve million, one hundred one thousand, two hundred one".