5210721162111 has 4 divisors (see below), whose sum is σ = 6947628216152. Its totient is φ = 3473814108072.

The previous prime is 5210721162107. The next prime is 5210721162121. The reversal of 5210721162111 is 1112611270125.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5210721162111 - 2² = 5210721162107 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 (5210721162121) 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, 868453527016 + ... + 868453527021.

It is an arithmetic number, because the mean of its divisors is an integer number (1736907054038).

Almost surely, 2^{5210721162111} is an apocalyptic number.

5210721162111 is a deficient number, since it is larger than the sum of its proper divisors (1736907054041).

5210721162111 is a wasteful number, since it uses less digits than its factorization.

5210721162111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736907054040.

The product of its (nonzero) digits is 1680, while the sum is 30.

The spelling of 5210721162111 in words is "five trillion, two hundred ten billion, seven hundred twenty-one million, one hundred sixty-two thousand, one hundred eleven".