22211140144 has 60 divisors (see below), whose sum is σ = 45466397256. Its totient is φ = 10509917184.

The previous prime is 22211140141. The next prime is 22211140151. The reversal of 22211140144 is 44104111222.

It is not an unprimeable number, because it can be changed into a prime (22211140141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8564512 + ... + 8567104.

Almost surely, 2^22211140144 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 22211140144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22733198628).

22211140144 is an abundant number, since it is smaller than the sum of its proper divisors (23255257112).

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

22211140144 is a wasteful number, since it uses less digits than its factorization.

22211140144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4122 (or 4097 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 22211140144 its reverse (44104111222), we get a palindrome (66315251366).

The spelling of 22211140144 in words is "twenty-two billion, two hundred eleven million, one hundred forty thousand, one hundred forty-four".