221224025222422 has 16 divisors (see below), whose sum is σ = 337669527267072. Its totient is φ = 108671747901120.

The previous prime is 221224025222399. The next prime is 221224025222423. The reversal of 221224025222422 is 224222520422122.

It is a super-2 number, since 2×221224025222422² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221224025222423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1057836918 + ... + 1058046025.

It is an arithmetic number, because the mean of its divisors is an integer number (21104345454192).

Almost surely, 2^{221224025222422} is an apocalyptic number.

221224025222422 is a deficient number, since it is larger than the sum of its proper divisors (116445502044650).

221224025222422 is a wasteful number, since it uses less digits than its factorization.

221224025222422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115883863.

The product of its (nonzero) digits is 81920, while the sum is 34.

Adding to 221224025222422 its reverse (224222520422122), we get a palindrome (445446545644544).

The spelling of 221224025222422 in words is "two hundred twenty-one trillion, two hundred twenty-four billion, twenty-five million, two hundred twenty-two thousand, four hundred twenty-two".