1001202002002 has 4 divisors (see below), whose sum is σ = 1501803003006. Its totient is φ = 500601001000.

The previous prime is 1001202001993. The next prime is 1001202002011. The reversal of 1001202002002 is 2002002021001.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1001202001993) and next prime (1001202002011).

It can be written as a sum of positive squares in only one way, i.e., 832493832921 + 168708169081 = 912411^2 + 410741^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1001202002002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250300500499 + ... + 250300500502.

Almost surely, 2^{1001202002002} is an apocalyptic number.

1001202002002 is a deficient number, since it is larger than the sum of its proper divisors (500601001004).

1001202002002 is an equidigital number, since it uses as much as digits as its factorization.

1001202002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500601001003.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 1001202002002 its reverse (2002002021001), we get a palindrome (3003204023003).

The spelling of 1001202002002 in words is "one trillion, one billion, two hundred two million, two thousand, two".