212240133420442 has 8 divisors (see below), whose sum is σ = 335116000137600. Its totient is φ = 100534800041244.

The previous prime is 212240133420431. The next prime is 212240133420467. The reversal of 212240133420442 is 244024331042212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 212240133420398 and 212240133420407.

It is an unprimeable number.

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, 2792633334442 + ... + 2792633334517.

It is an arithmetic number, because the mean of its divisors is an integer number (41889500017200).

Almost surely, 2^{212240133420442} is an apocalyptic number.

212240133420442 is a deficient number, since it is larger than the sum of its proper divisors (122875866717158).

212240133420442 is a wasteful number, since it uses less digits than its factorization.

212240133420442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5585266668980.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 212240133420442 its reverse (244024331042212), we get a palindrome (456264464462654).

The spelling of 212240133420442 in words is "two hundred twelve trillion, two hundred forty billion, one hundred thirty-three million, four hundred twenty thousand, four hundred forty-two".