122221123205 has 32 divisors (see below), whose sum is σ = 158284143360. Its totient is φ = 90294842880.

The previous prime is 122221123151. The next prime is 122221123253. The reversal of 122221123205 is 502321122221.

It is not a de Polignac number, because 122221123205 - 2²² = 122216928901 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4805432 + ... + 4830798.

It is an arithmetic number, because the mean of its divisors is an integer number (4946379480).

Almost surely, 2^122221123205 is an apocalyptic number.

It is an amenable number.

122221123205 is a deficient number, since it is larger than the sum of its proper divisors (36063020155).

122221123205 is a wasteful number, since it uses less digits than its factorization.

122221123205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26669.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 122221123205 its reverse (502321122221), we get a palindrome (624542245426).

The spelling of 122221123205 in words is "one hundred twenty-two billion, two hundred twenty-one million, one hundred twenty-three thousand, two hundred five".