221422005012105 has 12 divisors (see below), whose sum is σ = 383798142021060. Its totient is φ = 118091736006432.

The previous prime is 221422005012077. The next prime is 221422005012107. The reversal of 221422005012105 is 501210500224122.

221422005012105 is a `hidden beast` number, since 2 + 2 + 142 + 2 + 0 + 0 + 501 + 2 + 10 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 67590299854224 + 153831705157881 = 8221332^2 + 12402891^2 .

It is not a de Polignac number, because 221422005012105 - 2⁶ = 221422005012041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221422005012107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2460244500090 + ... + 2460244500179.

It is an arithmetic number, because the mean of its divisors is an integer number (31983178501755).

Almost surely, 2^{221422005012105} is an apocalyptic number.

It is an amenable number.

221422005012105 is a deficient number, since it is larger than the sum of its proper divisors (162376137008955).

221422005012105 is a wasteful number, since it uses less digits than its factorization.

221422005012105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4920489000280 (or 4920489000277 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 221422005012105 its reverse (501210500224122), we get a palindrome (722632505236227).

The spelling of 221422005012105 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, five million, twelve thousand, one hundred five".