2120122110111 has 8 divisors (see below), whose sum is σ = 2826842992944. Its totient is φ = 1413407983680.

The previous prime is 2120122110109. The next prime is 2120122110131. The reversal of 2120122110111 is 1110112210212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2120122110111 - 2¹ = 2120122110109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120122110131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 904900 + ... + 2249241.

It is an arithmetic number, because the mean of its divisors is an integer number (353355374118).

Almost surely, 2^{2120122110111} is an apocalyptic number.

2120122110111 is a deficient number, since it is larger than the sum of its proper divisors (706720882833).

2120122110111 is a wasteful number, since it uses less digits than its factorization.

2120122110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378201.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2120122110111 its reverse (1110112210212), we get a palindrome (3230234320323).

The spelling of 2120122110111 in words is "two trillion, one hundred twenty billion, one hundred twenty-two million, one hundred ten thousand, one hundred eleven".