2101321201 has 8 divisors (see below), whose sum is σ = 2437353920. Its totient is φ = 1774249488.

The previous prime is 2101321181. The next prime is 2101321247. The reversal of 2101321201 is 1021231012.

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 2101321201 - 2¹⁵ = 2101288433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101321801) 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, 2239746 + ... + 2240683.

It is an arithmetic number, because the mean of its divisors is an integer number (304669240).

Almost surely, 2^2101321201 is an apocalyptic number.

It is an amenable number.

2101321201 is a deficient number, since it is larger than the sum of its proper divisors (336032719).

2101321201 is an equidigital number, since it uses as much as digits as its factorization.

2101321201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4480503.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2101321201 is about 45840.1701676597. The cubic root of 2101321201 is about 1280.8476646353.

Adding to 2101321201 its reverse (1021231012), we get a palindrome (3122552213).

The spelling of 2101321201 in words is "two billion, one hundred one million, three hundred twenty-one thousand, two hundred one".