1011044124421 has 8 divisors (see below), whose sum is σ = 1023347450840. Its totient is φ = 998795847168.

The previous prime is 1011044124373. The next prime is 1011044124437. The reversal of 1011044124421 is 1244214401101.

It can be written as a sum of positive squares in 4 ways, for example, as 265233796 + 1010778890625 = 16286^2 + 1005375^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011044124421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011044184421) 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, 13725336 + ... + 13798801.

It is an arithmetic number, because the mean of its divisors is an integer number (127918431355).

Almost surely, 2^{1011044124421} is an apocalyptic number.

It is an amenable number.

1011044124421 is a deficient number, since it is larger than the sum of its proper divisors (12303326419).

1011044124421 is a wasteful number, since it uses less digits than its factorization.

1011044124421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27524583.

The product of its (nonzero) digits is 1024, while the sum is 25.

Adding to 1011044124421 its reverse (1244214401101), we get a palindrome (2255258525522).

The spelling of 1011044124421 in words is "one trillion, eleven billion, forty-four million, one hundred twenty-four thousand, four hundred twenty-one".