2221342025555 has 4 divisors (see below), whose sum is σ = 2665610430672. Its totient is φ = 1777073620440.

The previous prime is 2221342025543. The next prime is 2221342025659. The reversal of 2221342025555 is 5555202431222.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2221342025555 - 2²⁶ = 2221274916691 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222134202551 + ... + 222134202560.

It is an arithmetic number, because the mean of its divisors is an integer number (666402607668).

Almost surely, 2^{2221342025555} is an apocalyptic number.

2221342025555 is a deficient number, since it is larger than the sum of its proper divisors (444268405117).

2221342025555 is an equidigital number, since it uses as much as digits as its factorization.

2221342025555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444268405116.

The product of its (nonzero) digits is 240000, while the sum is 38.

Adding to 2221342025555 its reverse (5555202431222), we get a palindrome (7776544456777).

The spelling of 2221342025555 in words is "two trillion, two hundred twenty-one billion, three hundred forty-two million, twenty-five thousand, five hundred fifty-five".