211121253 has 36 divisors (see below), whose sum is σ = 366208128. Its totient is φ = 116741520.

The previous prime is 211121243. The next prime is 211121257. The reversal of 211121253 is 352121112.

211121253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211121253 - 2⁴ = 211121237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121257) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5950 + ... + 21392.

It is an arithmetic number, because the mean of its divisors is an integer number (10172448).

Almost surely, 2^211121253 is an apocalyptic number.

It is an amenable number.

211121253 is a deficient number, since it is larger than the sum of its proper divisors (155086875).

211121253 is a wasteful number, since it uses less digits than its factorization.

211121253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15494 (or 15484 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 211121253 is about 14530.0121472764. The cubic root of 211121253 is about 595.4481974789.

Adding to 211121253 its reverse (352121112), we get a palindrome (563242365).

The spelling of 211121253 in words is "two hundred eleven million, one hundred twenty-one thousand, two hundred fifty-three".