20200111222111 has 4 divisors (see below), whose sum is σ = 20321069972112. Its totient is φ = 20079152472112.

The previous prime is 20200111222099. The next prime is 20200111222133. The reversal of 20200111222111 is 11122211100202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20200111222111 - 2⁵ = 20200111222079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200111222141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60479374750 + ... + 60479375083.

It is an arithmetic number, because the mean of its divisors is an integer number (5080267493028).

Almost surely, 2^{20200111222111} is an apocalyptic number.

20200111222111 is a deficient number, since it is larger than the sum of its proper divisors (120958750001).

20200111222111 is a wasteful number, since it uses less digits than its factorization.

20200111222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120958750000.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20200111222111 its reverse (11122211100202), we get a palindrome (31322322322313).

The spelling of 20200111222111 in words is "twenty trillion, two hundred billion, one hundred eleven million, two hundred twenty-two thousand, one hundred eleven".