1223221002 has 32 divisors (see below), whose sum is σ = 2528724480. Its totient is φ = 394061760.

The previous prime is 1223220997. The next prime is 1223221031. The reversal of 1223221002 is 2001223221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150228 + ... + 158160.

It is an arithmetic number, because the mean of its divisors is an integer number (79022640).

Almost surely, 2^1223221002 is an apocalyptic number.

1223221002 is an abundant number, since it is smaller than the sum of its proper divisors (1305503478).

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

1223221002 is a wasteful number, since it uses less digits than its factorization.

1223221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8798.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1223221002 is about 34974.5765092302. The cubic root of 1223221002 is about 1069.4692689234.

Adding to 1223221002 its reverse (2001223221), we get a palindrome (3224444223).

The spelling of 1223221002 in words is "one billion, two hundred twenty-three million, two hundred twenty-one thousand, two".