12122461201 has 4 divisors (see below), whose sum is σ = 12835547172. Its totient is φ = 11409375232.

The previous prime is 12122461171. The next prime is 12122461217. The reversal of 12122461201 is 10216422121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10216422121 = 79 ⋅129321799.

It can be written as a sum of positive squares in 2 ways, for example, as 6955726801 + 5166734400 = 83401^2 + 71880^2 .

It is a cyclic number.

It is not a de Polignac number, because 12122461201 - 2²⁷ = 11988243473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122461231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356542960 + ... + 356542993.

It is an arithmetic number, because the mean of its divisors is an integer number (3208886793).

Almost surely, 2^12122461201 is an apocalyptic number.

It is an amenable number.

12122461201 is a deficient number, since it is larger than the sum of its proper divisors (713085971).

12122461201 is an equidigital number, since it uses as much as digits as its factorization.

12122461201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713085970.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 12122461201 its reverse (10216422121), we get a palindrome (22338883322).

The spelling of 12122461201 in words is "twelve billion, one hundred twenty-two million, four hundred sixty-one thousand, two hundred one".