12220124001 has 4 divisors (see below), whose sum is σ = 16293498672. Its totient is φ = 8146749332.

The previous prime is 12220123987. The next prime is 12220124009. The reversal of 12220124001 is 10042102221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10042102221 = 3 ⋅3347367407.

It is a cyclic number.

It is not a de Polignac number, because 12220124001 - 2⁵ = 12220123969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12220124009) 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, 2036687331 + ... + 2036687336.

It is an arithmetic number, because the mean of its divisors is an integer number (4073374668).

Almost surely, 2^12220124001 is an apocalyptic number.

It is an amenable number.

12220124001 is a deficient number, since it is larger than the sum of its proper divisors (4073374671).

12220124001 is an equidigital number, since it uses as much as digits as its factorization.

12220124001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4073374670.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12220124001 its reverse (10042102221), we get a palindrome (22262226222).

The spelling of 12220124001 in words is "twelve billion, two hundred twenty million, one hundred twenty-four thousand, one".