2122104023111 has 4 divisors (see below), whose sum is σ = 2143981384272. Its totient is φ = 2100226661952.

The previous prime is 2122104023099. The next prime is 2122104023147. The reversal of 2122104023111 is 1113204012212.

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 2122104023111 - 2¹⁸ = 2122103760967 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 (2122104023161) 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, 10938680435 + ... + 10938680628.

It is an arithmetic number, because the mean of its divisors is an integer number (535995346068).

Almost surely, 2^{2122104023111} is an apocalyptic number.

2122104023111 is a deficient number, since it is larger than the sum of its proper divisors (21877361161).

2122104023111 is an equidigital number, since it uses as much as digits as its factorization.

2122104023111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21877361160.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2122104023111 its reverse (1113204012212), we get a palindrome (3235308035323).

The spelling of 2122104023111 in words is "two trillion, one hundred twenty-two billion, one hundred four million, twenty-three thousand, one hundred eleven".