212000144233442 has 8 divisors (see below), whose sum is σ = 318048129616476. Its totient is φ = 105984101027952.

The previous prime is 212000144233439. The next prime is 212000144233477. The reversal of 212000144233442 is 244332441000212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 182348536315201 + 29651607918241 = 13503649^2 + 5445329^2 .

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

It is a super-2 number, since 2×212000144233442² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212000144233399 and 212000144233408.

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, 7985527793 + ... + 7985554340.

Almost surely, 2^{212000144233442} is an apocalyptic number.

212000144233442 is a deficient number, since it is larger than the sum of its proper divisors (106047985383034).

212000144233442 is a wasteful number, since it uses less digits than its factorization.

212000144233442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15971088772.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 212000144233442 its reverse (244332441000212), we get a palindrome (456332585233654).

The spelling of 212000144233442 in words is "two hundred twelve trillion, one hundred forty-four million, two hundred thirty-three thousand, four hundred forty-two".