21122441222 has 8 divisors (see below), whose sum is σ = 32010297816. Its totient is φ = 10452341952.

The previous prime is 21122441173. The next prime is 21122441243. The reversal of 21122441222 is 22214422112.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54439088 + ... + 54439475.

It is an arithmetic number, because the mean of its divisors is an integer number (4001287227).

Almost surely, 2^21122441222 is an apocalyptic number.

21122441222 is a deficient number, since it is larger than the sum of its proper divisors (10887856594).

21122441222 is a wasteful number, since it uses less digits than its factorization.

21122441222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108878662.

The product of its digits is 1024, while the sum is 23.

Adding to 21122441222 its reverse (22214422112), we get a palindrome (43336863334).

The spelling of 21122441222 in words is "twenty-one billion, one hundred twenty-two million, four hundred forty-one thousand, two hundred twenty-two".