2154332530112 has 112 divisors (see below), whose sum is σ = 5099490293760. Its totient is φ = 882908792832.

The previous prime is 2154332530109. The next prime is 2154332530127. The reversal of 2154332530112 is 2110352334512.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×2154332530112² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 42004388 + ... + 42055644.

Almost surely, 2^{2154332530112} 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 2154332530112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2549745146880).

2154332530112 is an abundant number, since it is smaller than the sum of its proper divisors (2945157763648).

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

2154332530112 is a wasteful number, since it uses less digits than its factorization.

2154332530112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55378 (or 55368 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 2154332530112 its reverse (2110352334512), we get a palindrome (4264684864624).

The spelling of 2154332530112 in words is "two trillion, one hundred fifty-four billion, three hundred thirty-two million, five hundred thirty thousand, one hundred twelve".