112121032212 has 144 divisors (see below), whose sum is σ = 345994975872. Its totient is φ = 29883248640.

The previous prime is 112121032211. The next prime is 112121032301. The reversal of 112121032212 is 212230121211.

112121032212 is a `hidden beast` number, since 1 + 121 + 210 + 322 + 12 = 666.

It is a super-2 number, since 2×112121032212² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121032211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 368287 + ... + 599897.

It is an arithmetic number, because the mean of its divisors is an integer number (2402742888).

Almost surely, 2^112121032212 is an apocalyptic number.

112121032212 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 112121032212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172997487936).

112121032212 is an abundant number, since it is smaller than the sum of its proper divisors (233873943660).

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

112121032212 is a wasteful number, since it uses less digits than its factorization.

112121032212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231758 (or 231753 counting only the distinct ones).

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

Adding to 112121032212 its reverse (212230121211), we get a palindrome (324351153423).

The spelling of 112121032212 in words is "one hundred twelve billion, one hundred twenty-one million, thirty-two thousand, two hundred twelve".