4221852660641 has 32 divisors (see below), whose sum is σ = 5456773370880. Its totient is φ = 3169513166400.

The previous prime is 4221852660607. The next prime is 4221852660671. The reversal of 4221852660641 is 1460662581224.

It is not a de Polignac number, because 4221852660641 - 2²⁶ = 4221785551777 is a prime.

It is a super-2 number, since 2×4221852660641² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4221852660671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 981455 + ... + 3067076.

It is an arithmetic number, because the mean of its divisors is an integer number (170524167840).

Almost surely, 2^{4221852660641} is an apocalyptic number.

It is an amenable number.

4221852660641 is a deficient number, since it is larger than the sum of its proper divisors (1234920710239).

4221852660641 is a wasteful number, since it uses less digits than its factorization.

4221852660641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4049045.

The product of its (nonzero) digits is 1105920, while the sum is 47.

The spelling of 4221852660641 in words is "four trillion, two hundred twenty-one billion, eight hundred fifty-two million, six hundred sixty thousand, six hundred forty-one".