1224404044221 has 16 divisors (see below), whose sum is σ = 1660583776320. Its totient is φ = 802253086080.

The previous prime is 1224404044217. The next prime is 1224404044229.

1224404044221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1224404044221 - 2² = 1224404044217 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224404044229) 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 15 ways as a sum of consecutive naturals, for example, 7231 + ... + 1564883.

It is an arithmetic number, because the mean of its divisors is an integer number (103786486020).

Almost surely, 2^{1224404044221} is an apocalyptic number.

It is an amenable number.

1224404044221 is a deficient number, since it is larger than the sum of its proper divisors (436179732099).

1224404044221 is a wasteful number, since it uses less digits than its factorization.

1224404044221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562156.

The product of its (nonzero) digits is 16384, while the sum is 30.

The spelling of 1224404044221 in words is "one trillion, two hundred twenty-four billion, four hundred four million, forty-four thousand, two hundred twenty-one".