121322321211112 has 128 divisors (see below), whose sum is σ = 264529010995200. Its totient is φ = 51093101094912.

The previous prime is 121322321211107. The next prime is 121322321211193. The reversal of 121322321211112 is 211112123223121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 804561339 + ... + 804712117.

It is an arithmetic number, because the mean of its divisors is an integer number (2066632898400).

Almost surely, 2^{121322321211112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121322321211112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132264505497600).

121322321211112 is an abundant number, since it is smaller than the sum of its proper divisors (143206689784088).

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

121322321211112 is a wasteful number, since it uses less digits than its factorization.

121322321211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151943 (or 151939 counting only the distinct ones).

The product of its digits is 576, while the sum is 25.

Adding to 121322321211112 its reverse (211112123223121), we get a palindrome (332434444434233).

The spelling of 121322321211112 in words is "one hundred twenty-one trillion, three hundred twenty-two billion, three hundred twenty-one million, two hundred eleven thousand, one hundred twelve".