1222221002 has 8 divisors (see below), whose sum is σ = 1833622212. Its totient is φ = 611013600.

The previous prime is 1222220971. The next prime is 1222221031. The reversal of 1222221002 is 2001222221.

It can be written as a sum of positive squares in 2 ways, for example, as 1098988801 + 123232201 = 33151^2 + 11101^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31499 + ... + 58622.

Almost surely, 2^1222221002 is an apocalyptic number.

1222221002 is a deficient number, since it is larger than the sum of its proper divisors (611401210).

1222221002 is an equidigital number, since it uses as much as digits as its factorization.

1222221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96904.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1222221002 is about 34960.2774874571. The cubic root of 1222221002 is about 1069.1777541890.

Adding to 1222221002 its reverse (2001222221), we get a palindrome (3223443223).

The spelling of 1222221002 in words is "one billion, two hundred twenty-two million, two hundred twenty-one thousand, two".