20002122111002 has 4 divisors (see below), whose sum is σ = 30003183166506. Its totient is φ = 10001061055500.

The previous prime is 20002122110953. The next prime is 20002122111073. The reversal of 20002122111002 is 20011122120002.

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., 17862042775201 + 2140079335801 = 4226351^2 + 1462901^2 .

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, 5000530527749 + ... + 5000530527752.

Almost surely, 2^{20002122111002} is an apocalyptic number.

20002122111002 is a deficient number, since it is larger than the sum of its proper divisors (10001061055504).

20002122111002 is a wasteful number, since it uses less digits than its factorization.

20002122111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10001061055503.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20002122111002 its reverse (20011122120002), we get a palindrome (40013244231004).

The spelling of 20002122111002 in words is "twenty trillion, two billion, one hundred twenty-two million, one hundred eleven thousand, two".