221211433122 has 8 divisors (see below), whose sum is σ = 442422866256. Its totient is φ = 73737144372.

The previous prime is 221211433099. The next prime is 221211433123. The reversal of 221211433122 is 221334112122.

It is a sphenic number, since it is the product of 3 distinct primes.

221211433122 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 221211433092 and 221211433101.

It is not an unprimeable number, because it can be changed into a prime (221211433123) 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, 18434286088 + ... + 18434286099.

It is an arithmetic number, because the mean of its divisors is an integer number (55302858282).

Almost surely, 2^221211433122 is an apocalyptic number.

221211433122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221211433122 is a wasteful number, since it uses less digits than its factorization.

221211433122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36868572192.

The product of its digits is 1152, while the sum is 24.

Adding to 221211433122 its reverse (221334112122), we get a palindrome (442545545244).

The spelling of 221211433122 in words is "two hundred twenty-one billion, two hundred eleven million, four hundred thirty-three thousand, one hundred twenty-two".