1425221125441 has 4 divisors (see below), whose sum is σ = 1425289010884. Its totient is φ = 1425153240000.

The previous prime is 1425221125423. The next prime is 1425221125457. The reversal of 1425221125441 is 1445211225241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 217850895025 + 1207370230416 = 466745^2 + 1098804^2 .

It is a cyclic number.

It is not a de Polignac number, because 1425221125441 - 2⁵ = 1425221125409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1425221125397 and 1425221125406.

It is not an unprimeable number, because it can be changed into a prime (1425221125411) 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, 33911220 + ... + 33953221.

It is an arithmetic number, because the mean of its divisors is an integer number (356322252721).

Almost surely, 2^{1425221125441} is an apocalyptic number.

It is an amenable number.

1425221125441 is a deficient number, since it is larger than the sum of its proper divisors (67885443).

1425221125441 is an equidigital number, since it uses as much as digits as its factorization.

1425221125441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67885442.

The product of its digits is 25600, while the sum is 34.

The spelling of 1425221125441 in words is "one trillion, four hundred twenty-five billion, two hundred twenty-one million, one hundred twenty-five thousand, four hundred forty-one".