22220422004 has 24 divisors (see below), whose sum is σ = 42611052288. Its totient is φ = 10054895040.

The previous prime is 22220421997. The next prime is 22220422009. The reversal of 22220422004 is 40022402222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220422009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1122497 + ... + 1142120.

It is an arithmetic number, because the mean of its divisors is an integer number (1775460512).

Almost surely, 2^22220422004 is an apocalyptic number.

It is an amenable number.

22220422004 is a deficient number, since it is larger than the sum of its proper divisors (20390630284).

22220422004 is a wasteful number, since it uses less digits than its factorization.

22220422004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264855 (or 2264853 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 22220422004 its reverse (40022402222), we get a palindrome (62242824226).

The spelling of 22220422004 in words is "twenty-two billion, two hundred twenty million, four hundred twenty-two thousand, four".