212012031132 has 36 divisors (see below), whose sum is σ = 584639238456. Its totient is φ = 64246069920.

The previous prime is 212012031089. The next prime is 212012031139. The reversal of 212012031132 is 231130210212.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×212012031132² (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 (212012031139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 267691563 + ... + 267692354.

It is an arithmetic number, because the mean of its divisors is an integer number (16239978846).

Almost surely, 2^212012031132 is an apocalyptic number.

212012031132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212012031132 is an abundant number, since it is smaller than the sum of its proper divisors (372627207324).

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

212012031132 is a wasteful number, since it uses less digits than its factorization.

212012031132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535383938 (or 535383933 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212012031132 its reverse (231130210212), we get a palindrome (443142241344).

The spelling of 212012031132 in words is "two hundred twelve billion, twelve million, thirty-one thousand, one hundred thirty-two".