1222202002 has 24 divisors (see below), whose sum is σ = 2146956300. Its totient is φ = 520279200.

The previous prime is 1222201993. The next prime is 1222202077. The reversal of 1222202002 is 2002022221.

It can be written as a sum of positive squares in 2 ways, for example, as 850830561 + 371371441 = 29169^2 + 19271^2 .

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 in 11 ways as a sum of consecutive naturals, for example, 27249 + ... + 56452.

Almost surely, 2^1222202002 is an apocalyptic number.

1222202002 is a deficient number, since it is larger than the sum of its proper divisors (924754298).

1222202002 is a wasteful number, since it uses less digits than its factorization.

1222202002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83866 (or 83859 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 1222202002 is about 34960.0057494274. The cubic root of 1222202002 is about 1069.1722138700.

Adding to 1222202002 its reverse (2002022221), we get a palindrome (3224224223).

The spelling of 1222202002 in words is "one billion, two hundred twenty-two million, two hundred two thousand, two".