221441403433 has 16 divisors (see below), whose sum is σ = 234850144320. Its totient is φ = 208208745216.

The previous prime is 221441403431. The next prime is 221441403437. The reversal of 221441403433 is 334304144122.

It is a cyclic number.

It is not a de Polignac number, because 221441403433 - 2¹ = 221441403431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221441403395 and 221441403404.

It is not an unprimeable number, because it can be changed into a prime (221441403431) 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, 18717466 + ... + 18729292.

It is an arithmetic number, because the mean of its divisors is an integer number (14678134020).

Almost surely, 2^221441403433 is an apocalyptic number.

It is an amenable number.

221441403433 is a deficient number, since it is larger than the sum of its proper divisors (13408740887).

221441403433 is a wasteful number, since it uses less digits than its factorization.

221441403433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19176.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 221441403433 its reverse (334304144122), we get a palindrome (555745547555).

The spelling of 221441403433 in words is "two hundred twenty-one billion, four hundred forty-one million, four hundred three thousand, four hundred thirty-three".