112021212132 has 144 divisors (see below), whose sum is σ = 298819003392. Its totient is φ = 35315121600.

The previous prime is 112021212103. The next prime is 112021212161. The reversal of 112021212132 is 231212120211.

It is an interprime number because it is at equal distance from previous prime (112021212103) and next prime (112021212161).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28379383 + ... + 28383329.

It is an arithmetic number, because the mean of its divisors is an integer number (2075131968).

Almost surely, 2^112021212132 is an apocalyptic number.

112021212132 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 112021212132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149409501696).

112021212132 is an abundant number, since it is smaller than the sum of its proper divisors (186797791260).

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

112021212132 is a wasteful number, since it uses less digits than its factorization.

112021212132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4358 (or 4353 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 112021212132 its reverse (231212120211), we get a palindrome (343233332343).

The spelling of 112021212132 in words is "one hundred twelve billion, twenty-one million, two hundred twelve thousand, one hundred thirty-two".