122220211 has 8 divisors (see below), whose sum is σ = 124574400. Its totient is φ = 119875560.

The previous prime is 122220209. The next prime is 122220223. The reversal of 122220211 is 112022221.

It is a happy number.

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 122220211 - 2¹ = 122220209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122220191 and 122220200.

It is not an unprimeable number, because it can be changed into a prime (122220251) 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, 26860 + ... + 31078.

It is an arithmetic number, because the mean of its divisors is an integer number (15571800).

Almost surely, 2^122220211 is an apocalyptic number.

122220211 is a deficient number, since it is larger than the sum of its proper divisors (2354189).

122220211 is an equidigital number, since it uses as much as digits as its factorization.

122220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4769.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 122220211 is about 11055.3250065297. The cubic root of 122220211 is about 496.2657955283.

Adding to 122220211 its reverse (112022221), we get a palindrome (234242432).

The spelling of 122220211 in words is "one hundred twenty-two million, two hundred twenty thousand, two hundred eleven".