210111001122 has 64 divisors (see below), whose sum is σ = 472690971648. Its totient is φ = 61702200000.

The previous prime is 210111001081. The next prime is 210111001123. The reversal of 210111001122 is 221100111012.

210111001122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 210111001098 and 210111001107.

It is not an unprimeable number, because it can be changed into a prime (210111001123) 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 31 ways as a sum of consecutive naturals, for example, 441547 + ... + 784337.

It is an arithmetic number, because the mean of its divisors is an integer number (7385796432).

Almost surely, 2^210111001122 is an apocalyptic number.

210111001122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 210111001122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236345485824).

210111001122 is an abundant number, since it is smaller than the sum of its proper divisors (262579970526).

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

210111001122 is a wasteful number, since it uses less digits than its factorization.

210111001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343095.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 210111001122 its reverse (221100111012), we get a palindrome (431211112134).

The spelling of 210111001122 in words is "two hundred ten billion, one hundred eleven million, one thousand, one hundred twenty-two".