121021101200201 has 4 divisors (see below), whose sum is σ = 121047893567172. Its totient is φ = 120994308833232.

The previous prime is 121021101200191. The next prime is 121021101200227. The reversal of 121021101200201 is 102002101120121.

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 43628349990976 + 77392751209225 = 6605176^2 + 8797315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121021101200201 is a prime.

It is a super-2 number, since 2×121021101200201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121021101280201) 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, 13396176710 + ... + 13396185743.

It is an arithmetic number, because the mean of its divisors is an integer number (30261973391793).

Almost surely, 2^{121021101200201} is an apocalyptic number.

It is an amenable number.

121021101200201 is a deficient number, since it is larger than the sum of its proper divisors (26792366971).

121021101200201 is an equidigital number, since it uses as much as digits as its factorization.

121021101200201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26792366970.

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

Adding to 121021101200201 its reverse (102002101120121), we get a palindrome (223023202320322).

The spelling of 121021101200201 in words is "one hundred twenty-one trillion, twenty-one billion, one hundred one million, two hundred thousand, two hundred one".