20221112210111 has 4 divisors (see below), whose sum is σ = 20223634497312. Its totient is φ = 20218589922912.

The previous prime is 20221112210081. The next prime is 20221112210137. The reversal of 20221112210111 is 11101221112202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20221112210111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20221112210111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221112210191) 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, 1261131575 + ... + 1261147608.

It is an arithmetic number, because the mean of its divisors is an integer number (5055908624328).

Almost surely, 2^{20221112210111} is an apocalyptic number.

20221112210111 is a deficient number, since it is larger than the sum of its proper divisors (2522287201).

20221112210111 is an equidigital number, since it uses as much as digits as its factorization.

20221112210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522287200.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 20221112210111 its reverse (11101221112202), we get a palindrome (31322333322313).

The spelling of 20221112210111 in words is "twenty trillion, two hundred twenty-one billion, one hundred twelve million, two hundred ten thousand, one hundred eleven".