1220000002 has 32 divisors (see below), whose sum is σ = 2113171200. Its totient is φ = 523231488.

The previous prime is 1219999993. The next prime is 1220000027. The reversal of 1220000002 is 2000000221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220000002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17449 + ... + 52387.

It is an arithmetic number, because the mean of its divisors is an integer number (66036600).

Almost surely, 2^1220000002 is an apocalyptic number.

1220000002 is a deficient number, since it is larger than the sum of its proper divisors (893171198).

1220000002 is a wasteful number, since it uses less digits than its factorization.

1220000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35050.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 1220000002 is about 34928.4984217759. The cubic root of 1220000002 is about 1068.5297307328.

Adding to 1220000002 its reverse (2000000221), we get a palindrome (3220000223).

The spelling of 1220000002 in words is "one billion, two hundred twenty million, two", and thus it is an aban number.