1320399222 has 8 divisors (see below), whose sum is σ = 2640798456. Its totient is φ = 440133072.

The previous prime is 1320399221. The next prime is 1320399233. The reversal of 1320399222 is 2229930231.

It is a sphenic number, since it is the product of 3 distinct primes.

1320399222 is an admirable number.

It is a super-3 number, since 3×1320399222³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320399221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110033263 + ... + 110033274.

It is an arithmetic number, because the mean of its divisors is an integer number (330099807).

Almost surely, 2^1320399222 is an apocalyptic number.

1320399222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1320399222 is a wasteful number, since it uses less digits than its factorization.

1320399222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220066542.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 1320399222 is about 36337.2979457747. The cubic root of 1320399222 is about 1097.0718879982.

The spelling of 1320399222 in words is "one billion, three hundred twenty million, three hundred ninety-nine thousand, two hundred twenty-two".