202001001002 has 16 divisors (see below), whose sum is σ = 303839711880. Its totient is φ = 100721256192.

The previous prime is 202001000969. The next prime is 202001001017. The reversal of 202001001002 is 200100100202.

It can be written as a sum of positive squares in 4 ways, for example, as 177981890641 + 24019110361 = 421879^2 + 154981^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2622998 + ... + 2698910.

Almost surely, 2^202001001002 is an apocalyptic number.

202001001002 is a deficient number, since it is larger than the sum of its proper divisors (101838710878).

202001001002 is a wasteful number, since it uses less digits than its factorization.

202001001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79577.

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

Adding to 202001001002 its reverse (200100100202), we get a palindrome (402101101204).

The spelling of 202001001002 in words is "two hundred two billion, one million, one thousand, two".