1122001140 has 72 divisors (see below), whose sum is σ = 3401885088. Its totient is φ = 276182400.

The previous prime is 1122001117. The next prime is 1122001183. The reversal of 1122001140 is 411002211.

It is a happy number.

It is a super-2 number, since 2×1122001140² = 2517773116322599200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45186 + ... + 65465.

It is an arithmetic number, because the mean of its divisors is an integer number (47248404).

Almost surely, 2^1122001140 is an apocalyptic number.

1122001140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122001140 is an abundant number, since it is smaller than the sum of its proper divisors (2279883948).

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

1122001140 is a wasteful number, since it uses less digits than its factorization.

1122001140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110689 (or 110674 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1122001140 is about 33496.2854657050. The cubic root of 1122001140 is about 1039.1169587746.

Adding to 1122001140 its reverse (411002211), we get a palindrome (1533003351).

The spelling of 1122001140 in words is "one billion, one hundred twenty-two million, one thousand, one hundred forty".