1122135444 has 30 divisors (see below), whose sum is σ = 2933484554. Its totient is φ = 374045040.

The previous prime is 1122135433. The next prime is 1122135467. The reversal of 1122135444 is 4445312211.

1122135444 is a `hidden beast` number, since 1 + 1 + 2 + 213 + 5 + 444 = 666.

It can be written as a sum of positive squares in only one way, i.e., 662547600 + 459587844 = 25740^2 + 21438^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1731367 + ... + 1732014.

Almost surely, 2^1122135444 is an apocalyptic number.

It is an amenable number.

1122135444 is an abundant number, since it is smaller than the sum of its proper divisors (1811349110).

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

1122135444 is a wasteful number, since it uses less digits than its factorization.

1122135444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3463397 (or 3463386 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1122135444 is about 33498.2901653204. The cubic root of 1122135444 is about 1039.1584180301.

Adding to 1122135444 its reverse (4445312211), we get a palindrome (5567447655).

It can be divided in two parts, 11221 and 35444, that added together give a triangular number (46665 = T₃₀₅).

The spelling of 1122135444 in words is "one billion, one hundred twenty-two million, one hundred thirty-five thousand, four hundred forty-four".