211192195253 has 32 divisors (see below), whose sum is σ = 251992018656. Its totient is φ = 175151628288.

The previous prime is 211192195223. The next prime is 211192195259. The reversal of 211192195253 is 352591291112.

It can be written as a sum of positive squares in 16 ways, for example, as 9992401444 + 201199793809 = 99962^2 + 448553^2 .

It is not a de Polignac number, because 211192195253 - 2¹⁰ = 211192194229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211192195253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211192195259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189725 + ... + 677037.

It is an arithmetic number, because the mean of its divisors is an integer number (7874750583).

Almost surely, 2^211192195253 is an apocalyptic number.

It is an amenable number.

211192195253 is a deficient number, since it is larger than the sum of its proper divisors (40799823403).

211192195253 is a wasteful number, since it uses less digits than its factorization.

211192195253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487433.

The product of its digits is 48600, while the sum is 41.

The spelling of 211192195253 in words is "two hundred eleven billion, one hundred ninety-two million, one hundred ninety-five thousand, two hundred fifty-three".