221222404213013 has 16 divisors (see below), whose sum is σ = 259661194639104. Its totient is φ = 184492608560640.

The previous prime is 221222404213001. The next prime is 221222404213021. The reversal of 221222404213013 is 310312404222122.

It is a cyclic number.

It is not a de Polignac number, because 221222404213013 - 2¹⁸ = 221222403950869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221222403213013) 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 15 ways as a sum of consecutive naturals, for example, 23640773 + ... + 31643813.

It is an arithmetic number, because the mean of its divisors is an integer number (16228824664944).

Almost surely, 2^{221222404213013} is an apocalyptic number.

It is an amenable number.

221222404213013 is a deficient number, since it is larger than the sum of its proper divisors (38438790426091).

221222404213013 is a wasteful number, since it uses less digits than its factorization.

221222404213013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8109812.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 221222404213013 its reverse (310312404222122), we get a palindrome (531534808435135).

The spelling of 221222404213013 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, four hundred four million, two hundred thirteen thousand, thirteen".