1000221223124 has 24 divisors (see below), whose sum is σ = 1785530244960. Its totient is φ = 490145505696.

The previous prime is 1000221223121. The next prime is 1000221223159. The reversal of 1000221223124 is 4213221220001.

It is a junction number, because it is equal to n+sod(n) for n = 1000221223096 and 1000221223105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000221223121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9419714 + ... + 9525305.

It is an arithmetic number, because the mean of its divisors is an integer number (74397093540).

Almost surely, 2^{1000221223124} is an apocalyptic number.

It is an amenable number.

1000221223124 is a deficient number, since it is larger than the sum of its proper divisors (785309021836).

1000221223124 is a wasteful number, since it uses less digits than its factorization.

1000221223124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18945287 (or 18945285 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1000221223124 its reverse (4213221220001), we get a palindrome (5213442443125).

The spelling of 1000221223124 in words is "one trillion, two hundred twenty-one million, two hundred twenty-three thousand, one hundred twenty-four".