1222554042 has 24 divisors (see below), whose sum is σ = 2649546900. Its totient is φ = 407413440.

The previous prime is 1222553977. The next prime is 1222554043. The reversal of 1222554042 is 2404552221.

1222554042 is a `hidden beast` number, since 1 + 2 + 2 + 255 + 404 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 959822361 + 262731681 = 30981^2 + 16209^2 .

It is a super-2 number, since 2×1222554042² = 2989276771221075528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1222553997 and 1222554015.

It is not an unprimeable number, because it can be changed into a prime (1222554043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100084 + ... + 111632.

Almost surely, 2^1222554042 is an apocalyptic number.

1222554042 is an abundant number, since it is smaller than the sum of its proper divisors (1426992858).

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

1222554042 is a wasteful number, since it uses less digits than its factorization.

1222554042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17438 (or 17435 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 1222554042 is about 34965.0402831171. The cubic root of 1222554042 is about 1069.2748579100.

The spelling of 1222554042 in words is "one billion, two hundred twenty-two million, five hundred fifty-four thousand, forty-two".