1220250415 has 16 divisors (see below), whose sum is σ = 1474986240. Its totient is φ = 969096960.

The previous prime is 1220250401. The next prime is 1220250419. The reversal of 1220250415 is 5140520221.

It is not a de Polignac number, because 1220250415 - 2⁹ = 1220249903 is a prime.

It is a super-2 number, since 2×1220250415² = 2978022150615344450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220250419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 847266 + ... + 848704.

It is an arithmetic number, because the mean of its divisors is an integer number (92186640).

Almost surely, 2^1220250415 is an apocalyptic number.

1220250415 is a deficient number, since it is larger than the sum of its proper divisors (254735825).

1220250415 is a wasteful number, since it uses less digits than its factorization.

1220250415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1220250415 is about 34932.0828895158. The cubic root of 1220250415 is about 1068.6028333093.

Adding to 1220250415 its reverse (5140520221), we get a palindrome (6360770636).

The spelling of 1220250415 in words is "one billion, two hundred twenty million, two hundred fifty thousand, four hundred fifteen".