10111112221122 has 48 divisors (see below), whose sum is σ = 23994207750240. Its totient is φ = 3051766320000.

The previous prime is 10111112221097. The next prime is 10111112221127. The reversal of 10111112221122 is 22112221111101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10111112221095 and 10111112221104.

It is not an unprimeable number, because it can be changed into a prime (10111112221127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101675847 + ... + 101775242.

It is an arithmetic number, because the mean of its divisors is an integer number (499879328130).

Almost surely, 2^{10111112221122} is an apocalyptic number.

10111112221122 is an abundant number, since it is smaller than the sum of its proper divisors (13883095529118).

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

10111112221122 is a wasteful number, since it uses less digits than its factorization.

10111112221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203451359 (or 203451356 counting only the distinct ones).

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

Adding to 10111112221122 its reverse (22112221111101), we get a palindrome (32223333332223).

The spelling of 10111112221122 in words is "ten trillion, one hundred eleven billion, one hundred twelve million, two hundred twenty-one thousand, one hundred twenty-two".