212400132 has 24 divisors (see below), whose sum is σ = 566400576. Its totient is φ = 60685728.

The previous prime is 212400113. The next prime is 212400157. The reversal of 212400132 is 231004212.

It is a super-2 number, since 2×212400132² = 90227632147234848, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1264203 + ... + 1264370.

It is an arithmetic number, because the mean of its divisors is an integer number (23600024).

Almost surely, 2^212400132 is an apocalyptic number.

It is an amenable number.

212400132 is an abundant number, since it is smaller than the sum of its proper divisors (354000444).

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

212400132 is a wasteful number, since it uses less digits than its factorization.

212400132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2528587 (or 2528585 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 212400132 is about 14573.9538904170. The cubic root of 212400132 is about 596.6480983510.

Adding to 212400132 its reverse (231004212), we get a palindrome (443404344).

The spelling of 212400132 in words is "two hundred twelve million, four hundred thousand, one hundred thirty-two".