1220124404 has 24 divisors (see below), whose sum is σ = 2188175808. Its totient is φ = 595108800.

The previous prime is 1220124341. The next prime is 1220124449. The reversal of 1220124404 is 4044210221.

It is a super-2 number, since 2×1220124404² = 2977407122472710432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5504 + ... + 49704.

It is an arithmetic number, because the mean of its divisors is an integer number (91173992).

Almost surely, 2^1220124404 is an apocalyptic number.

It is an amenable number.

1220124404 is a deficient number, since it is larger than the sum of its proper divisors (968051404).

1220124404 is a wasteful number, since it uses less digits than its factorization.

1220124404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44375 (or 44373 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1220124404 is about 34930.2791858296. The cubic root of 1220124404 is about 1068.5660484151.

Adding to 1220124404 its reverse (4044210221), we get a palindrome (5264334625).

The spelling of 1220124404 in words is "one billion, two hundred twenty million, one hundred twenty-four thousand, four hundred four".