2121112032 has 144 divisors (see below), whose sum is σ = 6370770672. Its totient is φ = 614154240.

The previous prime is 2121112027. The next prime is 2121112043. The reversal of 2121112032 is 2302111212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 357732 + ... + 363612.

It is an arithmetic number, because the mean of its divisors is an integer number (44241463).

Almost surely, 2^2121112032 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 2121112032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3185385336).

2121112032 is an abundant number, since it is smaller than the sum of its proper divisors (4249658640).

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

2121112032 is a wasteful number, since it uses less digits than its factorization.

2121112032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5941 (or 5916 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2121112032 is about 46055.5320455643. The cubic root of 2121112032 is about 1284.8562334680.

Adding to 2121112032 its reverse (2302111212), we get a palindrome (4423223244).

The spelling of 2121112032 in words is "two billion, one hundred twenty-one million, one hundred twelve thousand, thirty-two".