10111122138 has 32 divisors (see below), whose sum is σ = 22724666496. Its totient is φ = 2975848128.

The previous prime is 10111122103. The next prime is 10111122139. The reversal of 10111122138 is 83122111101.

It is not an unprimeable number, because it can be changed into a prime (10111122139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2816245 + ... + 2819832.

It is an arithmetic number, because the mean of its divisors is an integer number (710145828).

Almost surely, 2^10111122138 is an apocalyptic number.

10111122138 is an abundant number, since it is smaller than the sum of its proper divisors (12613544358).

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

10111122138 is a wasteful number, since it uses less digits than its factorization.

10111122138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5636118.

The product of its (nonzero) digits is 96, while the sum is 21.

Adding to 10111122138 its reverse (83122111101), we get a palindrome (93233233239).

The spelling of 10111122138 in words is "ten billion, one hundred eleven million, one hundred twenty-two thousand, one hundred thirty-eight".