1122112212520 has 32 divisors (see below), whose sum is σ = 2718964208520. Its totient is φ = 414318355200.

The previous prime is 1122112212493. The next prime is 1122112212521. The reversal of 1122112212520 is 252122112211.

It can be written as a sum of positive squares in 4 ways, for example, as 704669586916 + 417442625604 = 839446^2 + 646098^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1122112212491 and 1122112212500.

It is not an unprimeable number, because it can be changed into a prime (1122112212521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1078953531 + ... + 1078954570.

Almost surely, 2^{1122112212520} is an apocalyptic number.

1122112212520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122112212520 is an abundant number, since it is smaller than the sum of its proper divisors (1596851996000).

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

1122112212520 is a wasteful number, since it uses less digits than its factorization.

1122112212520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157908125 (or 2157908121 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

Adding to 1122112212520 its reverse (252122112211), we get a palindrome (1374234324731).

The spelling of 1122112212520 in words is "one trillion, one hundred twenty-two billion, one hundred twelve million, two hundred twelve thousand, five hundred twenty".