20211122200111 has 32 divisors (see below), whose sum is σ = 22033510507008. Its totient is φ = 18464658186240.

The previous prime is 20211122200069. The next prime is 20211122200117. The reversal of 20211122200111 is 11100222111202.

It is a cyclic number.

It is not a de Polignac number, because 20211122200111 - 2¹⁵ = 20211122167343 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 (20211122200117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 679099471 + ... + 679129231.

It is an arithmetic number, because the mean of its divisors is an integer number (688547203344).

Almost surely, 2^{20211122200111} is an apocalyptic number.

20211122200111 is a deficient number, since it is larger than the sum of its proper divisors (1822388306897).

20211122200111 is a wasteful number, since it uses less digits than its factorization.

20211122200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35551.

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

Adding to 20211122200111 its reverse (11100222111202), we get a palindrome (31311344311313).

The spelling of 20211122200111 in words is "twenty trillion, two hundred eleven billion, one hundred twenty-two million, two hundred thousand, one hundred eleven".