1122021132 has 12 divisors (see below), whose sum is σ = 2618049336. Its totient is φ = 374007040.

The previous prime is 1122021091. The next prime is 1122021139. The reversal of 1122021132 is 2311202211.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1122021132² = 2517862841309122848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1122021139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46750869 + ... + 46750892.

It is an arithmetic number, because the mean of its divisors is an integer number (218170778).

Almost surely, 2^1122021132 is an apocalyptic number.

1122021132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1122021132 is an abundant number, since it is smaller than the sum of its proper divisors (1496028204).

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

1122021132 is a wasteful number, since it uses less digits than its factorization.

1122021132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93501768 (or 93501766 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1122021132 is about 33496.5838855248. The cubic root of 1122021132 is about 1039.1231304566.

Adding to 1122021132 its reverse (2311202211), we get a palindrome (3433223343).

The spelling of 1122021132 in words is "one billion, one hundred twenty-two million, twenty-one thousand, one hundred thirty-two".