211022322012 has 60 divisors (see below), whose sum is σ = 551872444816. Its totient is φ = 70312924800.

The previous prime is 211022321999. The next prime is 211022322047. The reversal of 211022322012 is 210223220112.

211022322012 is a `hidden beast` number, since 211 + 0 + 223 + 220 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 698868 + ... + 954180.

Almost surely, 2^211022322012 is an apocalyptic number.

It is an amenable number.

211022322012 is an abundant number, since it is smaller than the sum of its proper divisors (340850122804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211022322012 is a wasteful number, since it uses less digits than its factorization.

211022322012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257880 (or 257869 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 211022322012 its reverse (210223220112), we get a palindrome (421245542124).

The spelling of 211022322012 in words is "two hundred eleven billion, twenty-two million, three hundred twenty-two thousand, twelve".