2101210239 has 8 divisors (see below), whose sum is σ = 2803898160. Its totient is φ = 1399664576.

The previous prime is 2101210211. The next prime is 2101210259. The reversal of 2101210239 is 9320121012.

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 2101210239 - 2⁵ = 2101210207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101210259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281262 + ... + 288635.

It is an arithmetic number, because the mean of its divisors is an integer number (350487270).

Almost surely, 2^2101210239 is an apocalyptic number.

2101210239 is a deficient number, since it is larger than the sum of its proper divisors (702687921).

2101210239 is a wasteful number, since it uses less digits than its factorization.

2101210239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571129.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 2101210239 is about 45838.9598376752. The cubic root of 2101210239 is about 1280.8251188325.

The spelling of 2101210239 in words is "two billion, one hundred one million, two hundred ten thousand, two hundred thirty-nine".