211240213125 has 40 divisors (see below), whose sum is σ = 352052432160. Its totient is φ = 112630056000.

The previous prime is 211240213123. The next prime is 211240213153. The reversal of 211240213125 is 521312042112.

It is a happy number.

It is not a de Polignac number, because 211240213125 - 2¹ = 211240213123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211240213095 and 211240213104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211240213123) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7735746 + ... + 7763004.

It is an arithmetic number, because the mean of its divisors is an integer number (8801310804).

Almost surely, 2^211240213125 is an apocalyptic number.

211240213125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

211240213125 is a deficient number, since it is larger than the sum of its proper divisors (140812219035).

211240213125 is an equidigital number, since it uses as much as digits as its factorization.

211240213125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31415 (or 31400 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 211240213125 its reverse (521312042112), we get a palindrome (732552255237).

The spelling of 211240213125 in words is "two hundred eleven billion, two hundred forty million, two hundred thirteen thousand, one hundred twenty-five".