211255214 has 4 divisors (see below), whose sum is σ = 316882824. Its totient is φ = 105627606.

The previous prime is 211255199. The next prime is 211255217. The reversal of 211255214 is 412552112.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 211255214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211255217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52813802 + ... + 52813805.

It is an arithmetic number, because the mean of its divisors is an integer number (79220706).

Almost surely, 2^211255214 is an apocalyptic number.

211255214 is a deficient number, since it is larger than the sum of its proper divisors (105627610).

211255214 is a wasteful number, since it uses less digits than its factorization.

211255214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105627609.

The product of its digits is 800, while the sum is 23.

The square root of 211255214 is about 14534.6212196947. The cubic root of 211255214 is about 595.5741124362.

The spelling of 211255214 in words is "two hundred eleven million, two hundred fifty-five thousand, two hundred fourteen".