1222002002 has 8 divisors (see below), whose sum is σ = 1974003276. Its totient is φ = 564000912.

The previous prime is 1222001933. The next prime is 1222002017. The reversal of 1222002002 is 2002002221.

It can be written as a sum of positive squares in 2 ways, for example, as 1009396441 + 212605561 = 31771^2 + 14581^2 .

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

1222002002 is a modest number, since divided by 2002 gives 1222 as remainder.

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 in 3 ways as a sum of consecutive naturals, for example, 23500013 + ... + 23500064.

Almost surely, 2^1222002002 is an apocalyptic number.

1222002002 is a deficient number, since it is larger than the sum of its proper divisors (752001274).

1222002002 is a wasteful number, since it uses less digits than its factorization.

1222002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47000092.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 1222002002 is about 34957.1452209702. The cubic root of 1222002002 is about 1069.1138912394.

Adding to 1222002002 its reverse (2002002221), we get a palindrome (3224004223).

The spelling of 1222002002 in words is "one billion, two hundred twenty-two million, two thousand, two".