1122131420 has 12 divisors (see below), whose sum is σ = 2356476024. Its totient is φ = 448852560.

The previous prime is 1122131407. The next prime is 1122131497. The reversal of 1122131420 is 241312211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28053266 + ... + 28053305.

It is an arithmetic number, because the mean of its divisors is an integer number (196373002).

Almost surely, 2^1122131420 is an apocalyptic number.

1122131420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122131420 is an abundant number, since it is smaller than the sum of its proper divisors (1234344604).

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

1122131420 is a wasteful number, since it uses less digits than its factorization.

1122131420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56106580 (or 56106578 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1122131420 is about 33498.2301024994. The cubic root of 1122131420 is about 1039.1571758811.

Adding to 1122131420 its reverse (241312211), we get a palindrome (1363443631).

The spelling of 1122131420 in words is "one billion, one hundred twenty-two million, one hundred thirty-one thousand, four hundred twenty".