212413440144 has 20 divisors (see below), whose sum is σ = 548734720496. Its totient is φ = 70804480032.

The previous prime is 212413440143. The next prime is 212413440191. The reversal of 212413440144 is 441044314212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212413440143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2212639954 + ... + 2212640049.

Almost surely, 2^212413440144 is an apocalyptic number.

212413440144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

212413440144 is an abundant number, since it is smaller than the sum of its proper divisors (336321280352).

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

212413440144 is a wasteful number, since it uses less digits than its factorization.

212413440144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4425280014 (or 4425280008 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 212413440144 its reverse (441044314212), we get a palindrome (653457754356).

The spelling of 212413440144 in words is "two hundred twelve billion, four hundred thirteen million, four hundred forty thousand, one hundred forty-four".