2105253245221 has 8 divisors (see below), whose sum is σ = 2412454123904. Its totient is φ = 1799664970320.

The previous prime is 2105253245197. The next prime is 2105253245231. The reversal of 2105253245221 is 1225423525012.

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

It is not a de Polignac number, because 2105253245221 - 2⁹ = 2105253244709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105253245231) 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, 403148145 + ... + 403153366.

It is an arithmetic number, because the mean of its divisors is an integer number (301556765488).

Almost surely, 2^{2105253245221} is an apocalyptic number.

It is an amenable number.

2105253245221 is a deficient number, since it is larger than the sum of its proper divisors (307200878683).

2105253245221 is an equidigital number, since it uses as much as digits as its factorization.

2105253245221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806301891.

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 2105253245221 in words is "two trillion, one hundred five billion, two hundred fifty-three million, two hundred forty-five thousand, two hundred twenty-one".