1202002002 has 24 divisors (see below), whose sum is σ = 2667859740. Its totient is φ = 390894720.

The previous prime is 1202001979. The next prime is 1202002003. The reversal of 1202002002 is 2002002021.

It can be written as a sum of positive squares in 2 ways, for example, as 1129564881 + 72437121 = 33609^2 + 8511^2 .

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

1202002002 is a modest number, since divided by 2002 gives 1202 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1202002003) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 813627 + ... + 815102.

Almost surely, 2^1202002002 is an apocalyptic number.

1202002002 is an abundant number, since it is smaller than the sum of its proper divisors (1465857738).

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

1202002002 is a wasteful number, since it uses less digits than its factorization.

1202002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628778 (or 1628775 counting only the distinct ones).

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

The square root of 1202002002 is about 34669.9005190381. The cubic root of 1202002002 is about 1063.2491976769.

Adding to 1202002002 its reverse (2002002021), we get a palindrome (3204004023).

The spelling of 1202002002 in words is "one billion, two hundred two million, two thousand, two".