1220322004 has 12 divisors (see below), whose sum is σ = 2329705728. Its totient is φ = 554691800.

The previous prime is 1220321969. The next prime is 1220322007. The reversal of 1220322004 is 4002230221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220322007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13867252 + ... + 13867339.

It is an arithmetic number, because the mean of its divisors is an integer number (194142144).

Almost surely, 2^1220322004 is an apocalyptic number.

It is an amenable number.

1220322004 is a deficient number, since it is larger than the sum of its proper divisors (1109383724).

1220322004 is a wasteful number, since it uses less digits than its factorization.

1220322004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27734606 (or 27734604 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1220322004 is about 34933.1075628837. The cubic root of 1220322004 is about 1068.6237303075.

Adding to 1220322004 its reverse (4002230221), we get a palindrome (5222552225).

The spelling of 1220322004 in words is "one billion, two hundred twenty million, three hundred twenty-two thousand, four".