221424102123433 has 4 divisors (see below), whose sum is σ = 241553565952848. Its totient is φ = 201294638294020.

The previous prime is 221424102123409. The next prime is 221424102123479. The reversal of 221424102123433 is 334321201424122.

221424102123433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221424102123433 - 2²⁵ = 221424068569001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221424102126433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10064731914691 + ... + 10064731914712.

It is an arithmetic number, because the mean of its divisors is an integer number (60388391488212).

Almost surely, 2^{221424102123433} is an apocalyptic number.

It is an amenable number.

221424102123433 is a deficient number, since it is larger than the sum of its proper divisors (20129463829415).

221424102123433 is a wasteful number, since it uses less digits than its factorization.

221424102123433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20129463829414.

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 221424102123433 its reverse (334321201424122), we get a palindrome (555745303547555).

The spelling of 221424102123433 in words is "two hundred twenty-one trillion, four hundred twenty-four billion, one hundred two million, one hundred twenty-three thousand, four hundred thirty-three".