210112222212111 has 4 divisors (see below), whose sum is σ = 280149629616152. Its totient is φ = 140074814808072.

The previous prime is 210112222212089. The next prime is 210112222212209. The reversal of 210112222212111 is 111212222211012.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 210112222212111 - 2⁶ = 210112222212047 is a prime.

It is a super-2 number, since 2×210112222212111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210112222216111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35018703702016 + ... + 35018703702021.

It is an arithmetic number, because the mean of its divisors is an integer number (70037407404038).

Almost surely, 2^{210112222212111} is an apocalyptic number.

210112222212111 is a deficient number, since it is larger than the sum of its proper divisors (70037407404041).

210112222212111 is an equidigital number, since it uses as much as digits as its factorization.

210112222212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70037407404040.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 210112222212111 its reverse (111212222211012), we get a palindrome (321324444423123).

The spelling of 210112222212111 in words is "two hundred ten trillion, one hundred twelve billion, two hundred twenty-two million, two hundred twelve thousand, one hundred eleven".