211225530523 has 8 divisors (see below), whose sum is σ = 242999287040. Its totient is φ = 179851444200.

The previous prime is 211225530497. The next prime is 211225530541. The reversal of 211225530523 is 325035522112.

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 211225530523 - 2³³ = 202635595931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211225536523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99916413 + ... + 99918526.

It is an arithmetic number, because the mean of its divisors is an integer number (30374910880).

Almost surely, 2^211225530523 is an apocalyptic number.

211225530523 is a deficient number, since it is larger than the sum of its proper divisors (31773756517).

211225530523 is a wasteful number, since it uses less digits than its factorization.

211225530523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199835097.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 211225530523 in words is "two hundred eleven billion, two hundred twenty-five million, five hundred thirty thousand, five hundred twenty-three".