121212301201 has 4 divisors (see below), whose sum is σ = 121217848612. Its totient is φ = 121206753792.

The previous prime is 121212301163. The next prime is 121212301207. The reversal of 121212301201 is 102103212121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102103212121 = 523 ⋅195226027.

It can be written as a sum of positive squares in 2 ways, for example, as 49775841025 + 71436460176 = 223105^2 + 267276^2 .

It is a cyclic number.

It is not a de Polignac number, because 121212301201 - 2¹⁵ = 121212268433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121212301207) 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 3 ways as a sum of consecutive naturals, for example, 2740800 + ... + 2784673.

It is an arithmetic number, because the mean of its divisors is an integer number (30304462153).

Almost surely, 2^121212301201 is an apocalyptic number.

It is an amenable number.

121212301201 is a deficient number, since it is larger than the sum of its proper divisors (5547411).

121212301201 is an equidigital number, since it uses as much as digits as its factorization.

121212301201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5547410.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121212301201 its reverse (102103212121), we get a palindrome (223315513322).

The spelling of 121212301201 in words is "one hundred twenty-one billion, two hundred twelve million, three hundred one thousand, two hundred one".