210112211220111 has 8 divisors (see below), whose sum is σ = 311277349955760. Its totient is φ = 140074807480056.

The previous prime is 210112211220029. The next prime is 210112211220139. The reversal of 210112211220111 is 111022112211012.

It is a happy number.

210112211220111 is a `hidden beast` number, since 2 + 10 + 112 + 211 + 220 + 111 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-210112211220111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210112211227111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3890966874420 + ... + 3890966874473.

It is an arithmetic number, because the mean of its divisors is an integer number (38909668744470).

Almost surely, 2^{210112211220111} is an apocalyptic number.

210112211220111 is a deficient number, since it is larger than the sum of its proper divisors (101165138735649).

210112211220111 is an equidigital number, since it uses as much as digits as its factorization.

210112211220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7781933748902 (or 7781933748896 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 210112211220111 its reverse (111022112211012), we get a palindrome (321134323431123).

Subtracting from 210112211220111 its reverse (111022112211012), we obtain a palindrome (99090099009099).

The spelling of 210112211220111 in words is "two hundred ten trillion, one hundred twelve billion, two hundred eleven million, two hundred twenty thousand, one hundred eleven".