2111011222212 has 36 divisors (see below), whose sum is σ = 5337265449516. Its totient is φ = 703525590720.

The previous prime is 2111011222163. The next prime is 2111011222213. The reversal of 2111011222212 is 2122221101112.

2111011222212 is a `hidden beast` number, since 211 + 10 + 11 + 222 + 212 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 972641723076 + 1138369499136 = 986226^2 + 1066944^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 (2111011222213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5856603 + ... + 6206594.

Almost surely, 2^{2111011222212} is an apocalyptic number.

It is an amenable number.

2111011222212 is an abundant number, since it is smaller than the sum of its proper divisors (3226254227304).

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

2111011222212 is a wasteful number, since it uses less digits than its factorization.

2111011222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12068068 (or 12068063 counting only the distinct ones).

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

Adding to 2111011222212 its reverse (2122221101112), we get a palindrome (4233232323324).

The spelling of 2111011222212 in words is "two trillion, one hundred eleven billion, eleven million, two hundred twenty-two thousand, two hundred twelve".