2111022222012 has 36 divisors (see below), whose sum is σ = 5821303704216. Its totient is φ = 639703703520.

The previous prime is 2111022222007. The next prime is 2111022222017. The reversal of 2111022222012 is 2102222201112.

It is a happy number.

2111022222012 is a `hidden beast` number, since 211 + 1 + 0 + 222 + 220 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (2111022222007) and next prime (2111022222017).

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111022222017) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2665431703 + ... + 2665432494.

Almost surely, 2^{2111022222012} is an apocalyptic number.

2111022222012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2111022222012 is an abundant number, since it is smaller than the sum of its proper divisors (3710281482204).

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

2111022222012 is a wasteful number, since it uses less digits than its factorization.

2111022222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330864218 (or 5330864213 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2111022222012 its reverse (2102222201112), we get a palindrome (4213244423124).

The spelling of 2111022222012 in words is "two trillion, one hundred eleven billion, twenty-two million, two hundred twenty-two thousand, twelve".