1111001022 has 40 divisors (see below), whose sum is σ = 2620497000. Its totient is φ = 350841456.

The previous prime is 1111000997. The next prime is 1111001027. The reversal of 1111001022 is 2201001111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1111000995 and 1111001013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111001027) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 177397 + ... + 183552.

It is an arithmetic number, because the mean of its divisors is an integer number (65512425).

Almost surely, 2^1111001022 is an apocalyptic number.

1111001022 is an abundant number, since it is smaller than the sum of its proper divisors (1509495978).

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

1111001022 is a wasteful number, since it uses less digits than its factorization.

1111001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360982 (or 360973 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1111001022 is about 33331.6819557609. The cubic root of 1111001022 is about 1035.7099602750.

Adding to 1111001022 its reverse (2201001111), we get a palindrome (3312002133).

The spelling of 1111001022 in words is "one billion, one hundred eleven million, one thousand, twenty-two".