12221310002 has 12 divisors (see below), whose sum is σ = 20150011518. Its totient is φ = 5555140800.

The previous prime is 12221309983. The next prime is 12221310011. The reversal of 12221310002 is 20001312221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8535727321 + 3685582681 = 92389^2 + 60709^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25250399 + ... + 25250882.

Almost surely, 2^12221310002 is an apocalyptic number.

12221310002 is a deficient number, since it is larger than the sum of its proper divisors (7928701516).

12221310002 is a wasteful number, since it uses less digits than its factorization.

12221310002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50501305 (or 50501294 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12221310002 its reverse (20001312221), we get a palindrome (32222622223).

It can be divided in two parts, 12221 and 310002, that added together give a palindrome (322223).

The spelling of 12221310002 in words is "twelve billion, two hundred twenty-one million, three hundred ten thousand, two".