1122155132 has 12 divisors (see below), whose sum is σ = 2244310320. Its totient is φ = 480923616.

The previous prime is 1122155123. The next prime is 1122155137. The reversal of 1122155132 is 2315512211.

1122155132 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1122155098 and 1122155107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122155137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20038457 + ... + 20038512.

It is an arithmetic number, because the mean of its divisors is an integer number (187025860).

Almost surely, 2^1122155132 is an apocalyptic number.

It is an amenable number.

1122155132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1122155132 is a wasteful number, since it uses less digits than its factorization.

1122155132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40076980 (or 40076978 counting only the distinct ones).

The product of its digits is 600, while the sum is 23.

The square root of 1122155132 is about 33498.5840297765. The cubic root of 1122155132 is about 1039.1644953807.

Adding to 1122155132 its reverse (2315512211), we get a palindrome (3437667343).

The spelling of 1122155132 in words is "one billion, one hundred twenty-two million, one hundred fifty-five thousand, one hundred thirty-two".