2321220001 has 8 divisors (see below), whose sum is σ = 2542513320. Its totient is φ = 2109343488.

The previous prime is 2321219993. The next prime is 2321220079. The reversal of 2321220001 is 1000221232.

It can be written as a sum of positive squares in 4 ways, for example, as 1187147025 + 1134072976 = 34455^2 + 33676^2 .

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 2321220001 - 2³ = 2321219993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2321220301) 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, 2353686 + ... + 2354671.

It is an arithmetic number, because the mean of its divisors is an integer number (317814165).

Almost surely, 2^2321220001 is an apocalyptic number.

It is an amenable number.

2321220001 is a deficient number, since it is larger than the sum of its proper divisors (221293319).

2321220001 is a wasteful number, since it uses less digits than its factorization.

2321220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4708403.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2321220001 is about 48179.0410967259. The cubic root of 2321220001 is about 1324.0531982486.

Adding to 2321220001 its reverse (1000221232), we get a palindrome (3321441233).

The spelling of 2321220001 in words is "two billion, three hundred twenty-one million, two hundred twenty thousand, one".