121012311200201 has 4 divisors (see below), whose sum is σ = 121063135356804. Its totient is φ = 120961487043600.

The previous prime is 121012311200149. The next prime is 121012311200219. The reversal of 121012311200201 is 102002113210121.

It is a happy number.

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 49184974240000 + 71827336960201 = 7013200^2 + 8475101^2 .

It is a cyclic number.

It is not a de Polignac number, because 121012311200201 - 2²⁶ = 121012244091337 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 121012311200201.

It is not an unprimeable number, because it can be changed into a prime (121012311200701) 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, 25412074730 + ... + 25412079491.

It is an arithmetic number, because the mean of its divisors is an integer number (30265783839201).

Almost surely, 2^{121012311200201} is an apocalyptic number.

It is an amenable number.

121012311200201 is a deficient number, since it is larger than the sum of its proper divisors (50824156603).

121012311200201 is an equidigital number, since it uses as much as digits as its factorization.

121012311200201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50824156602.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 121012311200201 its reverse (102002113210121), we get a palindrome (223014424410322).

The spelling of 121012311200201 in words is "one hundred twenty-one trillion, twelve billion, three hundred eleven million, two hundred thousand, two hundred one".