1123022221012 has 6 divisors (see below), whose sum is σ = 1965288886778. Its totient is φ = 561511110504.

The previous prime is 1123022220997. The next prime is 1123022221021. The reversal of 1123022221012 is 2101222203211.

It can be written as a sum of positive squares in only one way, i.e., 1067365861956 + 55656359056 = 1033134^2 + 235916^2 .

It is a super-2 number, since 2×1123022221012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140377777623 + ... + 140377777630.

Almost surely, 2^{1123022221012} is an apocalyptic number.

It is an amenable number.

1123022221012 is a deficient number, since it is larger than the sum of its proper divisors (842266665766).

1123022221012 is a wasteful number, since it uses less digits than its factorization.

1123022221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280755555257 (or 280755555255 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1123022221012 its reverse (2101222203211), we get a palindrome (3224244424223).

The spelling of 1123022221012 in words is "one trillion, one hundred twenty-three billion, twenty-two million, two hundred twenty-one thousand, twelve".