221241251052443 has 8 divisors (see below), whose sum is σ = 234255598716240. Its totient is φ = 208226920769280.

The previous prime is 221241251052431. The next prime is 221241251052539. The reversal of 221241251052443 is 344250152142122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 221241251052443 - 2²⁴ = 221241234275227 is a prime.

It is a super-2 number, since 2×221241251052443² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221241251052397 and 221241251052406.

It is not an unprimeable number, because it can be changed into a prime (221241251022443) 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, 29309783 + ... + 36076943.

It is an arithmetic number, because the mean of its divisors is an integer number (29281949839530).

Almost surely, 2^{221241251052443} is an apocalyptic number.

221241251052443 is a deficient number, since it is larger than the sum of its proper divisors (13014347663797).

221241251052443 is a wasteful number, since it uses less digits than its factorization.

221241251052443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8690317.

The product of its (nonzero) digits is 153600, while the sum is 38.

The spelling of 221241251052443 in words is "two hundred twenty-one trillion, two hundred forty-one billion, two hundred fifty-one million, fifty-two thousand, four hundred forty-three".