201200021001002 has 4 divisors (see below), whose sum is σ = 301800031501506. Its totient is φ = 100600010500500.

The previous prime is 201200021000999. The next prime is 201200021001011. The reversal of 201200021001002 is 200100120002102.

It is a happy number.

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., 199558878093961 + 1641142907041 = 14126531^2 + 1281071^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50300005250249 + ... + 50300005250252.

Almost surely, 2^{201200021001002} is an apocalyptic number.

201200021001002 is a deficient number, since it is larger than the sum of its proper divisors (100600010500504).

201200021001002 is a wasteful number, since it uses less digits than its factorization.

201200021001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100600010500503.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201200021001002 its reverse (200100120002102), we get a palindrome (401300141003104).

The spelling of 201200021001002 in words is "two hundred one trillion, two hundred billion, twenty-one million, one thousand, two".