20001101111122 has 4 divisors (see below), whose sum is σ = 30001651666686. Its totient is φ = 10000550555560.

The previous prime is 20001101111119. The next prime is 20001101111141. The reversal of 20001101111122 is 22111110110002.

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., 15706470733321 + 4294630377801 = 3963139^2 + 2072349^2 .

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 as a sum of consecutive naturals, namely, 5000275277779 + ... + 5000275277782.

Almost surely, 2^{20001101111122} is an apocalyptic number.

20001101111122 is a deficient number, since it is larger than the sum of its proper divisors (10000550555564).

20001101111122 is a wasteful number, since it uses less digits than its factorization.

20001101111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000550555563.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20001101111122 its reverse (22111110110002), we get a palindrome (42112211221124).

The spelling of 20001101111122 in words is "twenty trillion, one billion, one hundred one million, one hundred eleven thousand, one hundred twenty-two".