1220233199 has 4 divisors (see below), whose sum is σ = 1220406936. Its totient is φ = 1220059464.

The previous prime is 1220233187. The next prime is 1220233211. The reversal of 1220233199 is 9913320221.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1220233187) and next prime (1220233211).

It is a cyclic number.

It is not a de Polignac number, because 1220233199 - 2²⁰ = 1219184623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220233109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75869 + ... + 90534.

It is an arithmetic number, because the mean of its divisors is an integer number (305101734).

Almost surely, 2^1220233199 is an apocalyptic number.

1220233199 is a deficient number, since it is larger than the sum of its proper divisors (173737).

1220233199 is an equidigital number, since it uses as much as digits as its factorization.

1220233199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173736.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 1220233199 is about 34931.8364676122. The cubic root of 1220233199 is about 1068.5978077963.

The spelling of 1220233199 in words is "one billion, two hundred twenty million, two hundred thirty-three thousand, one hundred ninety-nine".