22012116924 has 96 divisors (see below), whose sum is σ = 60619507200. Its totient is φ = 6213306624.

The previous prime is 22012116913. The next prime is 22012116979. The reversal of 22012116924 is 42961121022.

It is a junction number, because it is equal to n+sod(n) for n = 22012116891 and 22012116900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309412 + ... + 373844.

It is an arithmetic number, because the mean of its divisors is an integer number (631453200).

Almost surely, 2^22012116924 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 22012116924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30309753600).

22012116924 is an abundant number, since it is smaller than the sum of its proper divisors (38607390276).

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

22012116924 is a wasteful number, since it uses less digits than its factorization.

22012116924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64544 (or 64528 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

Adding to 22012116924 its reverse (42961121022), we get a palindrome (64973237946).

The spelling of 22012116924 in words is "twenty-two billion, twelve million, one hundred sixteen thousand, nine hundred twenty-four".