211442214 has 8 divisors (see below), whose sum is σ = 422884440. Its totient is φ = 70480736.

The previous prime is 211442201. The next prime is 211442221. The reversal of 211442214 is 412244112.

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

211442214 is an admirable number.

It is a super-2 number, since 2×211442214² = 89415619722443592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17620179 + ... + 17620190.

It is an arithmetic number, because the mean of its divisors is an integer number (52860555).

Almost surely, 2^211442214 is an apocalyptic number.

211442214 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211442214 is a wasteful number, since it uses less digits than its factorization.

211442214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35240374.

The product of its digits is 512, while the sum is 21.

The square root of 211442214 is about 14541.0527129228. The cubic root of 211442214 is about 595.7497917506.

Adding to 211442214 its reverse (412244112), we get a palindrome (623686326).

The spelling of 211442214 in words is "two hundred eleven million, four hundred forty-two thousand, two hundred fourteen".