211322532406 has 4 divisors (see below), whose sum is σ = 316983798612. Its totient is φ = 105661266202.

The previous prime is 211322532367. The next prime is 211322532437. The reversal of 211322532406 is 604235223112.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52830633100 + ... + 52830633103.

It is an arithmetic number, because the mean of its divisors is an integer number (79245949653).

Almost surely, 2^211322532406 is an apocalyptic number.

211322532406 is a deficient number, since it is larger than the sum of its proper divisors (105661266206).

211322532406 is a wasteful number, since it uses less digits than its factorization.

211322532406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105661266205.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 211322532406 its reverse (604235223112), we get a palindrome (815557755518).

The spelling of 211322532406 in words is "two hundred eleven billion, three hundred twenty-two million, five hundred thirty-two thousand, four hundred six".