4424220012561 has 16 divisors (see below), whose sum is σ = 6414767334144. Its totient is φ = 2700954664704.

The previous prime is 4424220012557. The next prime is 4424220012599. The reversal of 4424220012561 is 1652100224244.

It is not a de Polignac number, because 4424220012561 - 2² = 4424220012557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4424220017561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1172287465 + ... + 1172291238.

It is an arithmetic number, because the mean of its divisors is an integer number (400922958384).

Almost surely, 2^{4424220012561} is an apocalyptic number.

It is an amenable number.

4424220012561 is a deficient number, since it is larger than the sum of its proper divisors (1990547321583).

4424220012561 is a wasteful number, since it uses less digits than its factorization.

4424220012561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344578760.

The product of its (nonzero) digits is 30720, while the sum is 33.

The spelling of 4424220012561 in words is "four trillion, four hundred twenty-four billion, two hundred twenty million, twelve thousand, five hundred sixty-one".