211122212022012 has 24 divisors (see below), whose sum is σ = 492619223149312. Its totient is φ = 70373966612400.

The previous prime is 211122212021957. The next prime is 211122212022041. The reversal of 211122212022012 is 210220212221112.

It is a self number, because there is not a number n which added to its sum of digits gives 211122212022012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4322314 + ... + 20998257.

Almost surely, 2^{211122212022012} is an apocalyptic number.

It is an amenable number.

211122212022012 is an abundant number, since it is smaller than the sum of its proper divisors (281497011127300).

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

211122212022012 is a wasteful number, since it uses less digits than its factorization.

211122212022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26015409 (or 26015407 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 211122212022012 its reverse (210220212221112), we get a palindrome (421342424243124).

The spelling of 211122212022012 in words is "two hundred eleven trillion, one hundred twenty-two billion, two hundred twelve million, twenty-two thousand, twelve".