2222420144 has 20 divisors (see below), whose sum is σ = 4921073424. Its totient is φ = 952465728.

The previous prime is 2222420141. The next prime is 2222420153. The reversal of 2222420144 is 4410242222.

It is not an unprimeable number, because it can be changed into a prime (2222420141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9921407 + ... + 9921630.

Almost surely, 2^2222420144 is an apocalyptic number.

It is an amenable number.

2222420144 is an abundant number, since it is smaller than the sum of its proper divisors (2698653280).

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

2222420144 is a wasteful number, since it uses less digits than its factorization.

2222420144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19843052 (or 19843046 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 2222420144 is about 47142.5513098305. The cubic root of 2222420144 is about 1304.9946211177.

Adding to 2222420144 its reverse (4410242222), we get a palindrome (6632662366).

The spelling of 2222420144 in words is "two billion, two hundred twenty-two million, four hundred twenty thousand, one hundred forty-four".