221412432403641 has 8 divisors (see below), whose sum is σ = 303195402931264. Its totient is φ = 143618875072560.

The previous prime is 221412432403609. The next prime is 221412432403661. The reversal of 221412432403641 is 146304234214122.

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

It is not a de Polignac number, because 221412432403641 - 2⁵ = 221412432403609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221412432403641.

It is not an unprimeable number, because it can be changed into a prime (221412432403661) 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, 997353299005 + ... + 997353299226.

It is an arithmetic number, because the mean of its divisors is an integer number (37899425366408).

Almost surely, 2^{221412432403641} is an apocalyptic number.

It is an amenable number.

221412432403641 is a deficient number, since it is larger than the sum of its proper divisors (81782970527623).

221412432403641 is a wasteful number, since it uses less digits than its factorization.

221412432403641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994706598271.

The product of its (nonzero) digits is 221184, while the sum is 39.

Adding to 221412432403641 its reverse (146304234214122), we get a palindrome (367716666617763).

The spelling of 221412432403641 in words is "two hundred twenty-one trillion, four hundred twelve billion, four hundred thirty-two million, four hundred three thousand, six hundred forty-one".