1200220002 has 48 divisors (see below), whose sum is σ = 2639702520. Its totient is φ = 394073856.

The previous prime is 1200220001. The next prime is 1200220031. The reversal of 1200220002 is 2000220021.

It can be written as a sum of positive squares in 4 ways, for example, as 1082475801 + 117744201 = 32901^2 + 10851^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1200220001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 468108 + ... + 470664.

Almost surely, 2^1200220002 is an apocalyptic number.

1200220002 is an abundant number, since it is smaller than the sum of its proper divisors (1439482518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1200220002 is a wasteful number, since it uses less digits than its factorization.

1200220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947 (or 2944 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 1200220002 is about 34644.1914611959. The cubic root of 1200220002 is about 1062.7235060506.

Adding to 1200220002 its reverse (2000220021), we get a palindrome (3200440023).

The spelling of 1200220002 in words is "one billion, two hundred million, two hundred twenty thousand, two".