20111122202002 has 16 divisors (see below), whose sum is σ = 32808852827352. Its totient is φ = 9190154851200.

The previous prime is 20111122201997. The next prime is 20111122202029. The reversal of 20111122202002 is 20020222111102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17599946362441 + 2511175839561 = 4195229^2 + 1584669^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3829228563 + ... + 3829233814.

Almost surely, 2^{20111122202002} is an apocalyptic number.

20111122202002 is a deficient number, since it is larger than the sum of its proper divisors (12697730625350).

20111122202002 is a wasteful number, since it uses less digits than its factorization.

20111122202002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7658462493.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20111122202002 its reverse (20020222111102), we get a palindrome (40131344313104).

The spelling of 20111122202002 in words is "twenty trillion, one hundred eleven billion, one hundred twenty-two million, two hundred two thousand, two".