1122563559121 has 3 divisors (see below), whose sum is σ = 1122564618633. Its totient is φ = 1122562499610.

The previous prime is 1122563559113. The next prime is 1122563559137. The reversal of 1122563559121 is 1219553652211.

The square root of 1122563559121 is 1059511.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1122563559121 - 2³ = 1122563559113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122563559101) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 529756 + ... + 1589266.

It is an arithmetic number, because the mean of its divisors is an integer number (374188206211).

Almost surely, 2^{1122563559121} is an apocalyptic number.

1122563559121 is the 1059511-st square number.

1122563559121 is the 529756-th centered octagonal number.

It is an amenable number.

1122563559121 is a deficient number, since it is larger than the sum of its proper divisors (1059512).

1122563559121 is an frugal number, since it uses more digits than its factorization.

1122563559121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119022 (or 1059511 counting only the distinct ones).

The product of its digits is 162000, while the sum is 43.

The spelling of 1122563559121 in words is "one trillion, one hundred twenty-two billion, five hundred sixty-three million, five hundred fifty-nine thousand, one hundred twenty-one".