2113121122111 has 8 divisors (see below), whose sum is σ = 2179289176064. Its totient is φ = 2047726963800.

The previous prime is 2113121122093. The next prime is 2113121122127. The reversal of 2113121122111 is 1112211213112.

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

It is a cyclic number.

It is not a de Polignac number, because 2113121122111 - 2¹³ = 2113121113919 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 (2113121122171) 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, 193468365 + ... + 193479286.

It is an arithmetic number, because the mean of its divisors is an integer number (272411147008).

Almost surely, 2^{2113121122111} is an apocalyptic number.

2113121122111 is a deficient number, since it is larger than the sum of its proper divisors (66168053953).

2113121122111 is a wasteful number, since it uses less digits than its factorization.

2113121122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386947821.

The product of its digits is 48, while the sum is 19.

Adding to 2113121122111 its reverse (1112211213112), we get a palindrome (3225332335223).

The spelling of 2113121122111 in words is "two trillion, one hundred thirteen billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred eleven".