22222420000 has 240 divisors, whose sum is σ = 60408688032. Its totient is φ = 7976960000.

The previous prime is 22222419983. The next prime is 22222420019. The reversal of 22222420000 is 2422222.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18259392 + ... + 18260608.

Almost surely, 2^22222420000 is an apocalyptic number.

22222420000 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 22222420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30204344016).

22222420000 is an abundant number, since it is smaller than the sum of its proper divisors (38186268032).

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

22222420000 is a wasteful number, since it uses less digits than its factorization.

22222420000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341 (or 1318 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 22222420000 its reverse (2422222), we get a palindrome (22224842222).

The spelling of 22222420000 in words is "twenty-two billion, two hundred twenty-two million, four hundred twenty thousand".