1223201996 has 6 divisors (see below), whose sum is σ = 2140603500. Its totient is φ = 611600996.

The previous prime is 1223201989. The next prime is 1223202023. The reversal of 1223201996 is 6991023221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152900246 + ... + 152900253.

It is an arithmetic number, because the mean of its divisors is an integer number (356767250).

Almost surely, 2^1223201996 is an apocalyptic number.

It is an amenable number.

1223201996 is a deficient number, since it is larger than the sum of its proper divisors (917401504).

1223201996 is a wasteful number, since it uses less digits than its factorization.

1223201996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305800503 (or 305800501 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 1223201996 is about 34974.3047965217. The cubic root of 1223201996 is about 1069.4637298758.

The spelling of 1223201996 in words is "one billion, two hundred twenty-three million, two hundred one thousand, nine hundred ninety-six".