212041132440 has 64 divisors (see below), whose sum is σ = 636591281760. Its totient is φ = 56502712320.

The previous prime is 212041132439. The next prime is 212041132477. The reversal of 212041132440 is 44231140212.

212041132440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212041132440² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 212041132440.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 485839 + ... + 812478.

Almost surely, 2^212041132440 is an apocalyptic number.

212041132440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212041132440 is an abundant number, since it is smaller than the sum of its proper divisors (424550149320).

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

212041132440 is a wasteful number, since it uses less digits than its factorization.

212041132440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299692 (or 1299688 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 212041132440 its reverse (44231140212), we get a palindrome (256272272652).

The spelling of 212041132440 in words is "two hundred twelve billion, forty-one million, one hundred thirty-two thousand, four hundred forty".