122220220111 has 8 divisors (see below), whose sum is σ = 133341004800. Its totient is φ = 111101078040.

The previous prime is 122220220091. The next prime is 122220220147. The reversal of 122220220111 is 111022022221.

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 122220220111 - 2³¹ = 120072736463 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 (122220220711) 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, 252421 + ... + 555118.

It is an arithmetic number, because the mean of its divisors is an integer number (16667625600).

Almost surely, 2^122220220111 is an apocalyptic number.

122220220111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122220220111 is a deficient number, since it is larger than the sum of its proper divisors (11120784689).

122220220111 is a wasteful number, since it uses less digits than its factorization.

122220220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821309.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122220220111 its reverse (111022022221), we get a palindrome (233242242332).

The spelling of 122220220111 in words is "one hundred twenty-two billion, two hundred twenty million, two hundred twenty thousand, one hundred eleven".