20202222004 has 12 divisors (see below), whose sum is σ = 35413511364. Its totient is φ = 10084075904.

The previous prime is 20202221989. The next prime is 20202222023. The reversal of 20202222004 is 40022220202.

It can be written as a sum of positive squares in 2 ways, for example, as 13053519504 + 7148702500 = 114252^2 + 84550^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4256107 + ... + 4260850.

It is an arithmetic number, because the mean of its divisors is an integer number (2951125947).

Almost surely, 2^20202222004 is an apocalyptic number.

It is an amenable number.

20202222004 is a deficient number, since it is larger than the sum of its proper divisors (15211289360).

20202222004 is a wasteful number, since it uses less digits than its factorization.

20202222004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8517554 (or 8517552 counting only the distinct ones).

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

Adding to 20202222004 its reverse (40022220202), we get a palindrome (60224442206).

The spelling of 20202222004 in words is "twenty billion, two hundred two million, two hundred twenty-two thousand, four".