1001009202002 has 4 divisors (see below), whose sum is σ = 1501513803006. Its totient is φ = 500504601000.

The previous prime is 1001009201987. The next prime is 1001009202043. The reversal of 1001009202002 is 2002029001001.

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

It can be written as a sum of positive squares in only one way, i.e., 963089039641 + 37920162361 = 981371^2 + 194731^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250252300499 + ... + 250252300502.

Almost surely, 2^{1001009202002} is an apocalyptic number.

1001009202002 is a deficient number, since it is larger than the sum of its proper divisors (500504601004).

1001009202002 is an equidigital number, since it uses as much as digits as its factorization.

1001009202002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500504601003.

The product of its (nonzero) digits is 72, while the sum is 17.

The spelling of 1001009202002 in words is "one trillion, one billion, nine million, two hundred two thousand, two".