121202101201121 has 4 divisors (see below), whose sum is σ = 121202830670100. Its totient is φ = 121201371732144.

The previous prime is 121202101201079. The next prime is 121202101201123. The reversal of 121202101201121 is 121102101202121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16636935745600 + 104565165455521 = 4078840^2 + 10225711^2 .

It is a cyclic number.

It is not a de Polignac number, because 121202101201121 - 2¹⁰ = 121202101200097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121202101201121.

It is not an unprimeable number, because it can be changed into a prime (121202101201123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364485206 + ... + 364817583.

It is an arithmetic number, because the mean of its divisors is an integer number (30300707667525).

Almost surely, 2^{121202101201121} is an apocalyptic number.

It is an amenable number.

121202101201121 is a deficient number, since it is larger than the sum of its proper divisors (729468979).

121202101201121 is an equidigital number, since it uses as much as digits as its factorization.

121202101201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729468978.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121202101201121 its reverse (121102101202121), we get a palindrome (242304202403242).

The spelling of 121202101201121 in words is "one hundred twenty-one trillion, two hundred two billion, one hundred one million, two hundred one thousand, one hundred twenty-one".