1045111122 has 144 divisors (see below), whose sum is σ = 2684957184. Its totient is φ = 292723200.

The previous prime is 1045111121. The next prime is 1045111141. The reversal of 1045111122 is 2211115401.

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 = 1045111095 and 1045111104.

It is not an unprimeable number, because it can be changed into a prime (1045111121) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1552578 + ... + 1553250.

It is an arithmetic number, because the mean of its divisors is an integer number (18645536).

Almost surely, 2^1045111122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1045111122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1342478592).

1045111122 is an abundant number, since it is smaller than the sum of its proper divisors (1639846062).

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

1045111122 is a wasteful number, since it uses less digits than its factorization.

1045111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757 (or 743 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 1045111122 is about 32328.1784516233. The cubic root of 1045111122 is about 1014.8164298724.

Adding to 1045111122 its reverse (2211115401), we get a palindrome (3256226523).

The spelling of 1045111122 in words is "one billion, forty-five million, one hundred eleven thousand, one hundred twenty-two".