1221033002 has 8 divisors (see below), whose sum is σ = 2093199456. Its totient is φ = 523299852.

The previous prime is 1221032987. The next prime is 1221033019. The reversal of 1221033002 is 2003301221.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 87216643 = 1221033002 / (1 + 2 + 2 + 1 + 0 + 3 + 3 + 0 + 0 + 2).

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, 43608308 + ... + 43608335.

It is an arithmetic number, because the mean of its divisors is an integer number (261649932).

Almost surely, 2^1221033002 is an apocalyptic number.

1221033002 is a deficient number, since it is larger than the sum of its proper divisors (872166454).

1221033002 is an equidigital number, since it uses as much as digits as its factorization.

1221033002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87216652.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1221033002 is about 34943.2826448804. The cubic root of 1221033002 is about 1068.8312279519.

Adding to 1221033002 its reverse (2003301221), we get a palindrome (3224334223).

The spelling of 1221033002 in words is "one billion, two hundred twenty-one million, thirty-three thousand, two".