122112211 has 8 divisors (see below), whose sum is σ = 131629680. Its totient is φ = 112612512.

The previous prime is 122112209. The next prime is 122112229. The reversal of 122112211 is 112211221.

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 122112211 - 2¹ = 122112209 is a prime.

It is a super-2 number, since 2×122112211² = 29822784150617042, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 122112191 and 122112200.

It is not an unprimeable number, because it can be changed into a prime (122112311) 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, 12156 + ... + 19798.

It is an arithmetic number, because the mean of its divisors is an integer number (16453710).

Almost surely, 2^122112211 is an apocalyptic number.

122112211 is a deficient number, since it is larger than the sum of its proper divisors (9517469).

122112211 is a wasteful number, since it uses less digits than its factorization.

122112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8885.

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

The square root of 122112211 is about 11050.4394030283. The cubic root of 122112211 is about 496.1195772115.

Adding to 122112211 its reverse (112211221), we get a palindrome (234323432).

The spelling of 122112211 in words is "one hundred twenty-two million, one hundred twelve thousand, two hundred eleven".