21152266225112 has 64 divisors (see below), whose sum is σ = 44690856883200. Its totient is φ = 9298436688000.

The previous prime is 21152266225073. The next prime is 21152266225171.

21152266225112 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1644314 + ... + 6708822.

It is an arithmetic number, because the mean of its divisors is an integer number (698294638800).

Almost surely, 2^{21152266225112} is an apocalyptic number.

21152266225112 is a gapful number since it is divisible by the number (22) 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 21152266225112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22345428441600).

21152266225112 is an abundant number, since it is smaller than the sum of its proper divisors (23538590658088).

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

21152266225112 is a wasteful number, since it uses less digits than its factorization.

21152266225112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5066088 (or 5066084 counting only the distinct ones).

The product of its digits is 57600, while the sum is 38.

The spelling of 21152266225112 in words is "twenty-one trillion, one hundred fifty-two billion, two hundred sixty-six million, two hundred twenty-five thousand, one hundred twelve".