2221231345005 has 32 divisors (see below), whose sum is σ = 3741194649600. Its totient is φ = 1122254332992.

The previous prime is 2221231344989. The next prime is 2221231345007. The reversal of 2221231345005 is 5005431321222.

It is not a de Polignac number, because 2221231345005 - 2⁴ = 2221231344989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221231345007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6396972 + ... + 6735258.

It is an arithmetic number, because the mean of its divisors is an integer number (116912332800).

Almost surely, 2^{2221231345005} is an apocalyptic number.

It is an amenable number.

2221231345005 is a deficient number, since it is larger than the sum of its proper divisors (1519963304595).

2221231345005 is a wasteful number, since it uses less digits than its factorization.

2221231345005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361353.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 2221231345005 its reverse (5005431321222), we get a palindrome (7226662666227).

The spelling of 2221231345005 in words is "two trillion, two hundred twenty-one billion, two hundred thirty-one million, three hundred forty-five thousand, five".