1223201002 has 4 divisors (see below), whose sum is σ = 1834801506. Its totient is φ = 611600500.

The previous prime is 1223200987. The next prime is 1223201027. The reversal of 1223201002 is 2001023221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2001023221 = 73 ⋅27411277.

It can be written as a sum of positive squares in only one way, i.e., 1098856201 + 124344801 = 33149^2 + 11151^2 .

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, 305800249 + ... + 305800252.

Almost surely, 2^1223201002 is an apocalyptic number.

1223201002 is a deficient number, since it is larger than the sum of its proper divisors (611600504).

1223201002 is an equidigital number, since it uses as much as digits as its factorization.

1223201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611600503.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1223201002 is about 34974.2905860862. The cubic root of 1223201002 is about 1069.4634401860.

Adding to 1223201002 its reverse (2001023221), we get a palindrome (3224224223).

The spelling of 1223201002 in words is "one billion, two hundred twenty-three million, two hundred one thousand, two".