2201250501 has 6 divisors (see below), whose sum is σ = 3179584070. Its totient is φ = 1467500328.

The previous prime is 2201250497. The next prime is 2201250551. The reversal of 2201250501 is 1050521022.

It can be written as a sum of positive squares in only one way, i.e., 1702800225 + 498450276 = 41265^2 + 22326^2 .

It is not a de Polignac number, because 2201250501 - 2² = 2201250497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201250551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122291686 + ... + 122291703.

Almost surely, 2^2201250501 is an apocalyptic number.

It is an amenable number.

2201250501 is a deficient number, since it is larger than the sum of its proper divisors (978333569).

2201250501 is a wasteful number, since it uses less digits than its factorization.

2201250501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244583395 (or 244583392 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 2201250501 is about 46917.4860899431. The cubic root of 2201250501 is about 1300.8378230408.

Adding to 2201250501 its reverse (1050521022), we get a palindrome (3251771523).

The spelling of 2201250501 in words is "two billion, two hundred one million, two hundred fifty thousand, five hundred one".