122122111 has 8 divisors (see below), whose sum is σ = 127543680. Its totient is φ = 116709912.

The previous prime is 122122097. The next prime is 122122129. The reversal of 122122111 is 111221221.

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

It is not a de Polignac number, because 122122111 - 2⁵ = 122122079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122122091 and 122122100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122122181) 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, 44176 + ... + 46858.

It is an arithmetic number, because the mean of its divisors is an integer number (15942960).

Almost surely, 2^122122111 is an apocalyptic number.

122122111 is a deficient number, since it is larger than the sum of its proper divisors (5421569).

122122111 is a wasteful number, since it uses less digits than its factorization.

122122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4685.

The product of its digits is 16, while the sum is 13.

The square root of 122122111 is about 11050.8873399379. The cubic root of 122122111 is about 496.1329841456.

Adding to 122122111 its reverse (111221221), we get a palindrome (233343332).

It can be divided in two parts, 1221221 and 11, that multiplied together give a palindrome (13433431).

The spelling of 122122111 in words is "one hundred twenty-two million, one hundred twenty-two thousand, one hundred eleven".