212041342545405 has 8 divisors (see below), whose sum is σ = 339266148072672. Its totient is φ = 113088716024208.

The previous prime is 212041342545311. The next prime is 212041342545407. The reversal of 212041342545405 is 504545243140212.

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

It is not a de Polignac number, because 212041342545405 - 2¹² = 212041342541309 is a prime.

It is a super-2 number, since 2×212041342545405² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212041342545407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7068044751499 + ... + 7068044751528.

It is an arithmetic number, because the mean of its divisors is an integer number (42408268509084).

Almost surely, 2^{212041342545405} is an apocalyptic number.

It is an amenable number.

212041342545405 is a deficient number, since it is larger than the sum of its proper divisors (127224805527267).

212041342545405 is a wasteful number, since it uses less digits than its factorization.

212041342545405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14136089503035.

The product of its (nonzero) digits is 768000, while the sum is 42.

Adding to 212041342545405 its reverse (504545243140212), we get a palindrome (716586585685617).

The spelling of 212041342545405 in words is "two hundred twelve trillion, forty-one billion, three hundred forty-two million, five hundred forty-five thousand, four hundred five".