122321155112 has 32 divisors (see below), whose sum is σ = 247021861800. Its totient is φ = 56449695744.

The previous prime is 122321155111. The next prime is 122321155153. The reversal of 122321155112 is 211551123221.

It can be written as a sum of positive squares in 4 ways, for example, as 121615402756 + 705752356 = 348734^2 + 26566^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (122321155111) 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, 961064 + ... + 1080872.

Almost surely, 2^122321155112 is an apocalyptic number.

It is an amenable number.

122321155112 is an abundant number, since it is smaller than the sum of its proper divisors (124700706688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122321155112 is a wasteful number, since it uses less digits than its factorization.

122321155112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129645 (or 129641 counting only the distinct ones).

The product of its digits is 1200, while the sum is 26.

Adding to 122321155112 its reverse (211551123221), we get a palindrome (333872278333).

The spelling of 122321155112 in words is "one hundred twenty-two billion, three hundred twenty-one million, one hundred fifty-five thousand, one hundred twelve".