1220199472 has 20 divisors (see below), whose sum is σ = 2388512056. Its totient is φ = 603809280.

The previous prime is 1220199467. The next prime is 1220199499. The reversal of 1220199472 is 2749910221.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391554 + ... + 394657.

Almost surely, 2^1220199472 is an apocalyptic number.

It is an amenable number.

1220199472 is a deficient number, since it is larger than the sum of its proper divisors (1168312584).

1220199472 is an equidigital number, since it uses as much as digits as its factorization.

1220199472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786316 (or 786310 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1220199472 is about 34931.3537098120. The cubic root of 1220199472 is about 1068.5879624295.

The spelling of 1220199472 in words is "one billion, two hundred twenty million, one hundred ninety-nine thousand, four hundred seventy-two".