211025031225 has 12 divisors (see below), whose sum is σ = 348894718416. Its totient is φ = 112546683280.

The previous prime is 211025031223. The next prime is 211025031253. The reversal of 211025031225 is 522130520112.

It is not a de Polignac number, because 211025031225 - 2¹ = 211025031223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211025031195 and 211025031204.

It is not an unprimeable number, because it can be changed into a prime (211025031223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1406833467 + ... + 1406833616.

It is an arithmetic number, because the mean of its divisors is an integer number (29074559868).

Almost surely, 2^211025031225 is an apocalyptic number.

211025031225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

211025031225 is a deficient number, since it is larger than the sum of its proper divisors (137869687191).

211025031225 is a wasteful number, since it uses less digits than its factorization.

211025031225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813667096 (or 2813667091 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 211025031225 its reverse (522130520112), we get a palindrome (733155551337).

The spelling of 211025031225 in words is "two hundred eleven billion, twenty-five million, thirty-one thousand, two hundred twenty-five".