12225401 has 4 divisors (see below), whose sum is σ = 12321792. Its totient is φ = 12129012.

The previous prime is 12225371. The next prime is 12225407. The reversal of 12225401 is 10452221.

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: 10452221 = 13 ⋅804017.

It is a cyclic number.

It is not a de Polignac number, because 12225401 - 2²² = 8031097 is a prime.

It is a super-2 number, since 2×12225401² = 298920859221602, which contains 22 as substring.

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 12225401.

It is not an unprimeable number, because it can be changed into a prime (12225407) 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, 48005 + ... + 48258.

It is an arithmetic number, because the mean of its divisors is an integer number (3080448).

Almost surely, 2^12225401 is an apocalyptic number.

It is an amenable number.

12225401 is a deficient number, since it is larger than the sum of its proper divisors (96391).

12225401 is an equidigital number, since it uses as much as digits as its factorization.

12225401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96390.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 12225401 is about 3496.4840911979. The cubic root of 12225401 is about 230.3674089965.

Adding to 12225401 its reverse (10452221), we get a palindrome (22677622).

The spelling of 12225401 in words is "twelve million, two hundred twenty-five thousand, four hundred one".