12222057216552 has 128 divisors (see below), whose sum is σ = 32081787279360. Its totient is φ = 3872697903360.

The previous prime is 12222057216503. The next prime is 12222057216557. The reversal of 12222057216552 is 25561275022221.

12222057216552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12222057216557) 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, 148128253 + ... + 148210739.

It is an arithmetic number, because the mean of its divisors is an integer number (250638963120).

Almost surely, 2^{12222057216552} is an apocalyptic number.

12222057216552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12222057216552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16040893639680).

12222057216552 is an abundant number, since it is smaller than the sum of its proper divisors (19859730062808).

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

12222057216552 is a wasteful number, since it uses less digits than its factorization.

12222057216552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84183 (or 84179 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 42.

The spelling of 12222057216552 in words is "twelve trillion, two hundred twenty-two billion, fifty-seven million, two hundred sixteen thousand, five hundred fifty-two".