211311214252 has 12 divisors (see below), whose sum is σ = 374249982456. Its totient is φ = 104382647840.

The previous prime is 211311214243. The next prime is 211311214267. The reversal of 211311214252 is 252412113112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318239449 + ... + 318240112.

It is an arithmetic number, because the mean of its divisors is an integer number (31187498538).

Almost surely, 2^211311214252 is an apocalyptic number.

It is an amenable number.

211311214252 is a deficient number, since it is larger than the sum of its proper divisors (162938768204).

211311214252 is a wasteful number, since it uses less digits than its factorization.

211311214252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636479648 (or 636479646 counting only the distinct ones).

The product of its digits is 960, while the sum is 25.

Adding to 211311214252 its reverse (252412113112), we get a palindrome (463723327364).

The spelling of 211311214252 in words is "two hundred eleven billion, three hundred eleven million, two hundred fourteen thousand, two hundred fifty-two".