1220220002 has 8 divisors (see below), whose sum is σ = 1833160896. Its totient is φ = 609166372.

The previous prime is 1220219971. The next prime is 1220220019. The reversal of 1220220002 is 2000220221.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470198 + ... + 472785.

It is an arithmetic number, because the mean of its divisors is an integer number (229145112).

Almost surely, 2^1220220002 is an apocalyptic number.

1220220002 is a deficient number, since it is larger than the sum of its proper divisors (612940894).

1220220002 is an equidigital number, since it uses as much as digits as its factorization.

1220220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943632.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 1220220002 is about 34931.6475706486. The cubic root of 1220220002 is about 1068.5939554354.

Adding to 1220220002 its reverse (2000220221), we get a palindrome (3220440223).

The spelling of 1220220002 in words is "one billion, two hundred twenty million, two hundred twenty thousand, two".