221343002455129 has 4 divisors (see below), whose sum is σ = 226490514140176. Its totient is φ = 216195490770084.

The previous prime is 221343002455111. The next prime is 221343002455147. The reversal of 221343002455129 is 921554200343122.

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 an interprime number because it is at equal distance from previous prime (221343002455111) and next prime (221343002455147).

It is a cyclic number.

It is not a de Polignac number, because 221343002455129 - 2³⁵ = 221308642716761 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 5147511685003 = 221343002455129 / (2 + 2 + 1 + 3 + 4 + 3 + 0 + 0 + 2 + 4 + 5 + 5 + 1 + 2 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221343002155129) 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, 2573755842459 + ... + 2573755842544.

It is an arithmetic number, because the mean of its divisors is an integer number (56622628535044).

Almost surely, 2^{221343002455129} is an apocalyptic number.

It is an amenable number.

221343002455129 is a deficient number, since it is larger than the sum of its proper divisors (5147511685047).

221343002455129 is an equidigital number, since it uses as much as digits as its factorization.

221343002455129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5147511685046.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 221343002455129 in words is "two hundred twenty-one trillion, three hundred forty-three billion, two million, four hundred fifty-five thousand, one hundred twenty-nine".