2261321201 has 8 divisors (see below), whose sum is σ = 2311355520. Its totient is φ = 2211822288.

The previous prime is 2261321191. The next prime is 2261321207. The reversal of 2261321201 is 1021231622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2261321201 - 2⁶ = 2261321137 is a prime.

It is a super-2 number, since 2×2261321201² = 10227147148184164802, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2261321207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125306 + ... + 142211.

It is an arithmetic number, because the mean of its divisors is an integer number (288919440).

Almost surely, 2^2261321201 is an apocalyptic number.

It is an amenable number.

2261321201 is a deficient number, since it is larger than the sum of its proper divisors (50034319).

2261321201 is a wasteful number, since it uses less digits than its factorization.

2261321201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267703.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2261321201 is about 47553.3511016837. The cubic root of 2261321201 is about 1312.5647945760.

Adding to 2261321201 its reverse (1021231622), we get a palindrome (3282552823).

The spelling of 2261321201 in words is "two billion, two hundred sixty-one million, three hundred twenty-one thousand, two hundred one".