121303221201 has 12 divisors (see below), whose sum is σ = 176823249460. Its totient is φ = 80126897760.

The previous prime is 121303221173. The next prime is 121303221203. The reversal of 121303221201 is 102122303121.

121303221201 is a `hidden beast` number, since 12 + 130 + 322 + 1 + 201 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 85394866176 + 35908355025 = 292224^2 + 189495^2 .

It is not a de Polignac number, because 121303221201 - 2⁷ = 121303221073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121303221203) 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 11 ways as a sum of consecutive naturals, for example, 61825330 + ... + 61827291.

Almost surely, 2^121303221201 is an apocalyptic number.

It is an amenable number.

121303221201 is a deficient number, since it is larger than the sum of its proper divisors (55520028259).

121303221201 is a wasteful number, since it uses less digits than its factorization.

121303221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123652736 (or 123652733 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121303221201 its reverse (102122303121), we get a palindrome (223425524322).

The spelling of 121303221201 in words is "one hundred twenty-one billion, three hundred three million, two hundred twenty-one thousand, two hundred one".