1122021043 has 16 divisors (see below), whose sum is σ = 1320480000. Its totient is φ = 939912480.

The previous prime is 1122021031. The next prime is 1122021071. The reversal of 1122021043 is 3401202211.

It is not a de Polignac number, because 1122021043 - 2⁵ = 1122021011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122021073) 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, 79108 + ... + 92206.

It is an arithmetic number, because the mean of its divisors is an integer number (82530000).

Almost surely, 2^1122021043 is an apocalyptic number.

1122021043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1122021043 is a deficient number, since it is larger than the sum of its proper divisors (198458957).

1122021043 is a wasteful number, since it uses less digits than its factorization.

1122021043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13722.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1122021043 is about 33496.5825570311. The cubic root of 1122021043 is about 1039.1231029818.

Adding to 1122021043 its reverse (3401202211), we get a palindrome (4523223254).

The spelling of 1122021043 in words is "one billion, one hundred twenty-two million, twenty-one thousand, forty-three".