214021111 has 8 divisors (see below), whose sum is σ = 225844400. Its totient is φ = 202253760.

The previous prime is 214021103. The next prime is 214021139. The reversal of 214021111 is 111120412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 214021111 - 2³ = 214021103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 214021091 and 214021100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214021151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6000 + ... + 21541.

It is an arithmetic number, because the mean of its divisors is an integer number (28230550).

Almost surely, 2^214021111 is an apocalyptic number.

214021111 is a deficient number, since it is larger than the sum of its proper divisors (11823289).

214021111 is a wasteful number, since it uses less digits than its factorization.

214021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27969.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 214021111 is about 14629.4603796586. The cubic root of 214021111 is about 598.1620711482.

Adding to 214021111 its reverse (111120412), we get a palindrome (325141523).

The spelling of 214021111 in words is "two hundred fourteen million, twenty-one thousand, one hundred eleven".