122221322011221 has 32 divisors (see below), whose sum is σ = 174970893180672. Its totient is φ = 75710595417600.

The previous prime is 122221322011153. The next prime is 122221322011231. The reversal of 122221322011221 is 122110223122221.

It is not a de Polignac number, because 122221322011221 - 2⁷ = 122221322011093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122221322011191 and 122221322011200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221322011231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165082120 + ... + 165820833.

It is an arithmetic number, because the mean of its divisors is an integer number (5467840411896).

Almost surely, 2^{122221322011221} is an apocalyptic number.

It is an amenable number.

122221322011221 is a deficient number, since it is larger than the sum of its proper divisors (52749571169451).

122221322011221 is a wasteful number, since it uses less digits than its factorization.

122221322011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330903133.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 122221322011221 its reverse (122110223122221), we get a palindrome (244331545133442).

The spelling of 122221322011221 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, three hundred twenty-two million, eleven thousand, two hundred twenty-one".