202000121002 has 4 divisors (see below), whose sum is σ = 303000181506. Its totient is φ = 101000060500.

The previous prime is 202000120999. The next prime is 202000121033. The reversal of 202000121002 is 200121000202.

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., 194559505921 + 7440615081 = 441089^2 + 86259^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 202000121002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50500030249 + ... + 50500030252.

Almost surely, 2^202000121002 is an apocalyptic number.

202000121002 is a deficient number, since it is larger than the sum of its proper divisors (101000060504).

202000121002 is a wasteful number, since it uses less digits than its factorization.

202000121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101000060503.

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

Adding to 202000121002 its reverse (200121000202), we get a palindrome (402121121204).

The spelling of 202000121002 in words is "two hundred two billion, one hundred twenty-one thousand, two".