211022012211012 has 18 divisors (see below), whose sum is σ = 533416753089038. Its totient is φ = 70340670736992.

The previous prime is 211022012210917. The next prime is 211022012211019. The reversal of 211022012211012 is 210112210220112.

211022012211012 is a `hidden beast` number, since 211 + 0 + 220 + 1 + 221 + 1 + 0 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 160265877267456 + 50756134943556 = 12659616^2 + 7124334^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is not an unprimeable number, because it can be changed into a prime (211022012211019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2930861280673 + ... + 2930861280744.

Almost surely, 2^{211022012211012} is an apocalyptic number.

It is an amenable number.

211022012211012 is an abundant number, since it is smaller than the sum of its proper divisors (322394740878026).

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

211022012211012 is a wasteful number, since it uses less digits than its factorization.

211022012211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5861722561427 (or 5861722561422 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 211022012211012 its reverse (210112210220112), we get a palindrome (421134222431124).

The spelling of 211022012211012 in words is "two hundred eleven trillion, twenty-two billion, twelve million, two hundred eleven thousand, twelve".