221514 has 8 divisors (see below), whose sum is σ = 443040. Its totient is φ = 73836.

The previous prime is 221509. The next prime is 221537. The reversal of 221514 is 415122.

221514 is nontrivially palindromic in base 13.

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

221514 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 221493 and 221502.

It is an unprimeable number.

221514 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18454 + ... + 18465.

It is an arithmetic number, because the mean of its divisors is an integer number (55380).

2²²¹⁵¹⁴ is an apocalyptic number.

221514 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.

221514 is a wasteful number, since it uses less digits than its factorization.

221514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36924.

The product of its digits is 80, while the sum is 15.

The square root of 221514 is about 470.6527382264. The cubic root of 221514 is about 60.5062716901.

Adding to 221514 its reverse (415122), we get a palindrome (636636).

It can be divided in two parts, 22151 and 4, that added together give a triangular number (22155 = T₂₁₀).

The spelling of 221514 in words is "two hundred twenty-one thousand, five hundred fourteen".