1225425422 has 24 divisors (see below), whose sum is σ = 2044225656. Its totient is φ = 550289376.

The previous prime is 1225425403. The next prime is 1225425431. The reversal of 1225425422 is 2245245221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36488 + ... + 61499.

It is an arithmetic number, because the mean of its divisors is an integer number (85176069).

Almost surely, 2^1225425422 is an apocalyptic number.

1225425422 is a deficient number, since it is larger than the sum of its proper divisors (818800234).

1225425422 is a wasteful number, since it uses less digits than its factorization.

1225425422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98052 (or 98039 counting only the distinct ones).

The product of its digits is 12800, while the sum is 29.

The square root of 1225425422 is about 35006.0769295847. The cubic root of 1225425422 is about 1070.1113291447. Note that the first 3 decimals are identical.

The spelling of 1225425422 in words is "one billion, two hundred twenty-five million, four hundred twenty-five thousand, four hundred twenty-two".