22222002004 has 6 divisors (see below), whose sum is σ = 38888503514. Its totient is φ = 11111001000.

The previous prime is 22222002001. The next prime is 22222002017. The reversal of 22222002004 is 40020022222.

It can be written as a sum of positive squares in only one way, i.e., 13421685904 + 8800316100 = 115852^2 + 93810^2 .

It is a super-3 number, since 3×22222002004³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222002001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777750247 + ... + 2777750254.

Almost surely, 2^22222002004 is an apocalyptic number.

It is an amenable number.

22222002004 is a deficient number, since it is larger than the sum of its proper divisors (16666501510).

22222002004 is a wasteful number, since it uses less digits than its factorization.

22222002004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5555500505 (or 5555500503 counting only the distinct ones).

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

Adding to 22222002004 its reverse (40020022222), we get a palindrome (62242024226).

The spelling of 22222002004 in words is "twenty-two billion, two hundred twenty-two million, two thousand, four".