1221846325 has 24 divisors (see below), whose sum is σ = 1733764032. Its totient is φ = 836757120.

The previous prime is 1221846317. The next prime is 1221846331. The reversal of 1221846325 is 5236481221.

It is not a de Polignac number, because 1221846325 - 2³ = 1221846317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145902 + ... + 154048.

It is an arithmetic number, because the mean of its divisors is an integer number (72240168).

Almost surely, 2^1221846325 is an apocalyptic number.

It is an amenable number.

1221846325 is a deficient number, since it is larger than the sum of its proper divisors (511917707).

1221846325 is an equidigital number, since it uses as much as digits as its factorization.

1221846325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9021 (or 9016 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 1221846325 is about 34954.9184665048. The cubic root of 1221846325 is about 1069.0684893739.

The spelling of 1221846325 in words is "one billion, two hundred twenty-one million, eight hundred forty-six thousand, three hundred twenty-five".