20052222004 has 6 divisors (see below), whose sum is σ = 35091388514. Its totient is φ = 10026111000.

The previous prime is 20052221989. The next prime is 20052222019. The reversal of 20052222004 is 40022225002.

It is an interprime number because it is at equal distance from previous prime (20052221989) and next prime (20052222019).

It can be written as a sum of positive squares in only one way, i.e., 13507088400 + 6545133604 = 116220^2 + 80902^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2506527747 + ... + 2506527754.

Almost surely, 2^20052222004 is an apocalyptic number.

It is an amenable number.

20052222004 is a deficient number, since it is larger than the sum of its proper divisors (15039166510).

20052222004 is a wasteful number, since it uses less digits than its factorization.

20052222004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5013055505 (or 5013055503 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

Adding to 20052222004 its reverse (40022225002), we get a palindrome (60074447006).

The spelling of 20052222004 in words is "twenty billion, fifty-two million, two hundred twenty-two thousand, four".