212204550260639 has 4 divisors (see below), whose sum is σ = 224687170864224. Its totient is φ = 199721929657056.

The previous prime is 212204550260629. The next prime is 212204550260657. The reversal of 212204550260639 is 936062055402212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212204550260639 - 2²⁰ = 212204549212063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212204550260593 and 212204550260602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212204550260609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6241310301767 + ... + 6241310301800.

It is an arithmetic number, because the mean of its divisors is an integer number (56171792716056).

Almost surely, 2^{212204550260639} is an apocalyptic number.

212204550260639 is a deficient number, since it is larger than the sum of its proper divisors (12482620603585).

212204550260639 is a wasteful number, since it uses less digits than its factorization.

212204550260639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12482620603584.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 212204550260639 in words is "two hundred twelve trillion, two hundred four billion, five hundred fifty million, two hundred sixty thousand, six hundred thirty-nine".