1220541425 has 12 divisors (see below), whose sum is σ = 1514653056. Its totient is φ = 975670800.

The previous prime is 1220541419. The next prime is 1220541431. The reversal of 1220541425 is 5241450221.

It is an interprime number because it is at equal distance from previous prime (1220541419) and next prime (1220541431).

It is not a de Polignac number, because 1220541425 - 2⁴ = 1220541409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220541394 and 1220541403.

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, 14780 + ... + 51570.

It is an arithmetic number, because the mean of its divisors is an integer number (126221088).

Almost surely, 2^1220541425 is an apocalyptic number.

It is an amenable number.

1220541425 is a deficient number, since it is larger than the sum of its proper divisors (294111631).

1220541425 is a wasteful number, since it uses less digits than its factorization.

1220541425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38128 (or 38123 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1220541425 is about 34936.2480097677. The cubic root of 1220541425 is about 1068.6877747249.

Adding to 1220541425 its reverse (5241450221), we get a palindrome (6461991646).

The spelling of 1220541425 in words is "one billion, two hundred twenty million, five hundred forty-one thousand, four hundred twenty-five".