1220199168 has 36 divisors (see below), whose sum is σ = 3247511288. Its totient is φ = 406732800.

The previous prime is 1220199163. The next prime is 1220199173. The reversal of 1220199168 is 8619910221.

It is an interprime number because it is at equal distance from previous prime (1220199163) and next prime (1220199173).

It is not an unprimeable number, because it can be changed into a prime (1220199163) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 793633 + ... + 795168.

Almost surely, 2^1220199168 is an apocalyptic number.

It is an amenable number.

1220199168 is an abundant number, since it is smaller than the sum of its proper divisors (2027312120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220199168 is an equidigital number, since it uses as much as digits as its factorization.

1220199168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588820 (or 1588806 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 1220199168 is about 34931.3493584202. The cubic root of 1220199168 is about 1068.5878736870.

The spelling of 1220199168 in words is "one billion, two hundred twenty million, one hundred ninety-nine thousand, one hundred sixty-eight".