122212120013 has 4 divisors (see below), whose sum is σ = 122350840668. Its totient is φ = 122073399360.

The previous prime is 122212119907. The next prime is 122212120033. The reversal of 122212120013 is 310021212221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13732792969 + 108479327044 = 117187^2 + 329362^2 .

It is a cyclic number.

It is not a de Polignac number, because 122212120013 - 2¹² = 122212115917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122212119973 and 122212120000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122212120033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69359006 + ... + 69360767.

It is an arithmetic number, because the mean of its divisors is an integer number (30587710167).

Almost surely, 2^122212120013 is an apocalyptic number.

It is an amenable number.

122212120013 is a deficient number, since it is larger than the sum of its proper divisors (138720655).

122212120013 is an equidigital number, since it uses as much as digits as its factorization.

122212120013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138720654.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 122212120013 its reverse (310021212221), we get a palindrome (432233332234).

The spelling of 122212120013 in words is "one hundred twenty-two billion, two hundred twelve million, one hundred twenty thousand, thirteen".