122641111 has 4 divisors (see below), whose sum is σ = 129855312. Its totient is φ = 115426912.

The previous prime is 122641109. The next prime is 122641133. The reversal of 122641111 is 111146221.

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 122641111 - 2¹ = 122641109 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 (122641411) 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, 3607075 + ... + 3607108.

It is an arithmetic number, because the mean of its divisors is an integer number (32463828).

Almost surely, 2^122641111 is an apocalyptic number.

122641111 is a deficient number, since it is larger than the sum of its proper divisors (7214201).

122641111 is an equidigital number, since it uses as much as digits as its factorization.

122641111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7214200.

The product of its digits is 96, while the sum is 19.

The square root of 122641111 is about 11074.3447210207. The cubic root of 122641111 is about 496.8348202205.

Adding to 122641111 its reverse (111146221), we get a palindrome (233787332).

The spelling of 122641111 in words is "one hundred twenty-two million, six hundred forty-one thousand, one hundred eleven".