22221213541305 has 16 divisors (see below), whose sum is σ = 35554419294720. Its totient is φ = 11851154679168.

The previous prime is 22221213541277. The next prime is 22221213541309. The reversal of 22221213541305 is 50314531212222.

It is not a de Polignac number, because 22221213541305 - 2⁵ = 22221213541273 is a prime.

It is a super-2 number, since 2×22221213541305² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22221213541309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8792452 + ... + 11034021.

It is an arithmetic number, because the mean of its divisors is an integer number (2222151205920).

Almost surely, 2^{22221213541305} is an apocalyptic number.

It is an amenable number.

22221213541305 is a deficient number, since it is larger than the sum of its proper divisors (13333205753415).

22221213541305 is a wasteful number, since it uses less digits than its factorization.

22221213541305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19901200.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 22221213541305 its reverse (50314531212222), we get a palindrome (72535744753527).

The spelling of 22221213541305 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred thirteen million, five hundred forty-one thousand, three hundred five".