1223021002 has 16 divisors (see below), whose sum is σ = 2168904960. Its totient is φ = 506077488.

The previous prime is 1223020979. The next prime is 1223021003. The reversal of 1223021002 is 2001203221.

It is not an unprimeable number, because it can be changed into a prime (1223021003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1505778 + ... + 1506589.

It is an arithmetic number, because the mean of its divisors is an integer number (135556560).

Almost surely, 2^1223021002 is an apocalyptic number.

1223021002 is a deficient number, since it is larger than the sum of its proper divisors (945883958).

1223021002 is a wasteful number, since it uses less digits than its factorization.

1223021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012405.

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

The square root of 1223021002 is about 34971.7171725953. The cubic root of 1223021002 is about 1069.4109786902.

Adding to 1223021002 its reverse (2001203221), we get a palindrome (3224224223).

The spelling of 1223021002 in words is "one billion, two hundred twenty-three million, twenty-one thousand, two".