1002200501 has 2 divisors, whose sum is σ = 1002200502. Its totient is φ = 1002200500.

The previous prime is 1002200497. The next prime is 1002200509. The reversal of 1002200501 is 1050022001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 509404900 + 492795601 = 22570^2 + 22199^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002200501 - 2² = 1002200497 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002200509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501100250 + 501100251.

It is an arithmetic number, because the mean of its divisors is an integer number (501100251).

Almost surely, 2^1002200501 is an apocalyptic number.

It is an amenable number.

1002200501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002200501 is an equidigital number, since it uses as much as digits as its factorization.

1002200501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1002200501 is about 31657.5504579871. The cubic root of 1002200501 is about 1000.7329629674.

Adding to 1002200501 its reverse (1050022001), we get a palindrome (2052222502).

The spelling of 1002200501 in words is "one billion, two million, two hundred thousand, five hundred one".