212055345345231 has 16 divisors (see below), whose sum is σ = 330690597030400. Its totient is φ = 133929691796664.

The previous prime is 212055345345203. The next prime is 212055345345323. The reversal of 212055345345231 is 132543543550212.

212055345345231 is a `hidden beast` number, since 2 + 1 + 2 + 0 + 5 + 5 + 34 + 534 + 52 + 31 = 666.

It is not a de Polignac number, because 212055345345231 - 2¹⁰ = 212055345344207 is a prime.

It is a super-2 number, since 2×212055345345231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212055345345931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206681622631 + ... + 206681623656.

It is an arithmetic number, because the mean of its divisors is an integer number (20668162314400).

Almost surely, 2^{212055345345231} is an apocalyptic number.

212055345345231 is a deficient number, since it is larger than the sum of its proper divisors (118635251685169).

212055345345231 is a wasteful number, since it uses less digits than its factorization.

212055345345231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413363246315 (or 413363246309 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 45.

Adding to 212055345345231 its reverse (132543543550212), we get a palindrome (344598888895443).

The spelling of 212055345345231 in words is "two hundred twelve trillion, fifty-five billion, three hundred forty-five million, three hundred forty-five thousand, two hundred thirty-one".