212224142040 has 32 divisors (see below), whose sum is σ = 636672426480. Its totient is φ = 56593104512.

The previous prime is 212224142021. The next prime is 212224142047. The reversal of 212224142040 is 40241422212.

It is a happy number.

212224142040 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 2×212224142040² (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 212224142040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212224142047) 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 7 ways as a sum of consecutive naturals, for example, 884267139 + ... + 884267378.

Almost surely, 2^212224142040 is an apocalyptic number.

212224142040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212224142040 is an abundant number, since it is smaller than the sum of its proper divisors (424448284440).

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

212224142040 is a wasteful number, since it uses less digits than its factorization.

212224142040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768534531 (or 1768534527 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 212224142040 its reverse (40241422212), we get a palindrome (252465564252).

The spelling of 212224142040 in words is "two hundred twelve billion, two hundred twenty-four million, one hundred forty-two thousand, forty".