2239821709201 has 4 divisors (see below), whose sum is σ = 2239829838400. Its totient is φ = 2239813580004.

The previous prime is 2239821709199. The next prime is 2239821709207. The reversal of 2239821709201 is 1029071289322.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2239821709201 - 2¹ = 2239821709199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2239821709207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3636261 + ... + 4207378.

It is an arithmetic number, because the mean of its divisors is an integer number (559957459600).

Almost surely, 2^{2239821709201} is an apocalyptic number.

It is an amenable number.

2239821709201 is a deficient number, since it is larger than the sum of its proper divisors (8129199).

2239821709201 is an equidigital number, since it uses as much as digits as its factorization.

2239821709201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8129198.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 2239821709201 in words is "two trillion, two hundred thirty-nine billion, eight hundred twenty-one million, seven hundred nine thousand, two hundred one".