22056420000 has 480 divisors, whose sum is σ = 75651383808. Its totient is φ = 5620608000.

The previous prime is 22056419969. The next prime is 22056420011. The reversal of 22056420000 is 2465022.

It is a tau number, because it is divible by the number of its divisors (480).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 214139949 + ... + 214140051.

Almost surely, 2^22056420000 is an apocalyptic number.

22056420000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22056420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37825691904).

22056420000 is an abundant number, since it is smaller than the sum of its proper divisors (53594963808).

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

22056420000 is a wasteful number, since it uses less digits than its factorization.

22056420000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 22056420000 its reverse (2465022), we get a palindrome (22058885022).

The spelling of 22056420000 in words is "twenty-two billion, fifty-six million, four hundred twenty thousand".