22120303616 has 44 divisors (see below), whose sum is σ = 44310803088. Its totient is φ = 11037192192.

The previous prime is 22120303609. The next prime is 22120303637. The reversal of 22120303616 is 61630302122.

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, 476510 + ... + 520866.

Almost surely, 2^22120303616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22120303616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22155401544).

22120303616 is an abundant number, since it is smaller than the sum of its proper divisors (22190499472).

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

22120303616 is an equidigital number, since it uses as much as digits as its factorization.

22120303616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44864 (or 44846 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 22120303616 its reverse (61630302122), we get a palindrome (83750605738).

The spelling of 22120303616 in words is "twenty-two billion, one hundred twenty million, three hundred three thousand, six hundred sixteen".