221122425532 has 12 divisors (see below), whose sum is σ = 387085534416. Its totient is φ = 110526558560.

The previous prime is 221122425529. The next prime is 221122425533. The reversal of 221122425532 is 235524221122.

It is a junction number, because it is equal to n+sod(n) for n = 221122425494 and 221122425503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221122425533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8649193 + ... + 8674720.

It is an arithmetic number, because the mean of its divisors is an integer number (32257127868).

Almost surely, 2^221122425532 is an apocalyptic number.

It is an amenable number.

221122425532 is a deficient number, since it is larger than the sum of its proper divisors (165963108884).

221122425532 is a wasteful number, since it uses less digits than its factorization.

221122425532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17327108 (or 17327106 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

Adding to 221122425532 its reverse (235524221122), we get a palindrome (456646646654).

The spelling of 221122425532 in words is "two hundred twenty-one billion, one hundred twenty-two million, four hundred twenty-five thousand, five hundred thirty-two".