1220281124 has 24 divisors (see below), whose sum is σ = 2158060128. Its totient is φ = 603711360.

The previous prime is 1220281103. The next prime is 1220281193. The reversal of 1220281124 is 4211820221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220281124.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310379 + ... + 314285.

It is an arithmetic number, because the mean of its divisors is an integer number (89919172).

Almost surely, 2^1220281124 is an apocalyptic number.

It is an amenable number.

1220281124 is a deficient number, since it is larger than the sum of its proper divisors (937779004).

1220281124 is a wasteful number, since it uses less digits than its factorization.

1220281124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4715 (or 4713 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 1220281124 is about 34932.5224396979. The cubic root of 1220281124 is about 1068.6117974390.

The spelling of 1220281124 in words is "one billion, two hundred twenty million, two hundred eighty-one thousand, one hundred twenty-four".