122221111113 has 8 divisors (see below), whose sum is σ = 181068312800. Its totient is φ = 81480740724.

The previous prime is 122221111093. The next prime is 122221111127. The reversal of 122221111113 is 311111122221.

It is a happy number.

It is not a de Polignac number, because 122221111113 - 2⁸ = 122221110857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122221111913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2263353883 + ... + 2263353936.

It is an arithmetic number, because the mean of its divisors is an integer number (22633539100).

Almost surely, 2^122221111113 is an apocalyptic number.

It is an amenable number.

122221111113 is a deficient number, since it is larger than the sum of its proper divisors (58847201687).

122221111113 is an equidigital number, since it uses as much as digits as its factorization.

122221111113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4526707828 (or 4526707822 counting only the distinct ones).

The product of its digits is 48, while the sum is 18.

Adding to 122221111113 its reverse (311111122221), we get a palindrome (433332233334).

The spelling of 122221111113 in words is "one hundred twenty-two billion, two hundred twenty-one million, one hundred eleven thousand, one hundred thirteen".