221253514 has 8 divisors (see below), whose sum is σ = 346309920. Its totient is φ = 105816876.

The previous prime is 221253511. The next prime is 221253523. The reversal of 221253514 is 415352122.

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

It is not an unprimeable number, because it can be changed into a prime (221253511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2404884 + ... + 2404975.

It is an arithmetic number, because the mean of its divisors is an integer number (43288740).

Almost surely, 2^221253514 is an apocalyptic number.

221253514 is a deficient number, since it is larger than the sum of its proper divisors (125056406).

221253514 is a wasteful number, since it uses less digits than its factorization.

221253514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4809884.

The product of its digits is 2400, while the sum is 25.

The square root of 221253514 is about 14874.5929019923. The cubic root of 221253514 is about 604.8254524582.

The spelling of 221253514 in words is "two hundred twenty-one million, two hundred fifty-three thousand, five hundred fourteen".