221096653 has 4 divisors (see below), whose sum is σ = 221391808. Its totient is φ = 220801500.

The previous prime is 221096639. The next prime is 221096657. The reversal of 221096653 is 356690122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221096653 - 2⁵ = 221096621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221096657) 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, 146451 + ... + 147952.

It is an arithmetic number, because the mean of its divisors is an integer number (55347952).

Almost surely, 2^221096653 is an apocalyptic number.

It is an amenable number.

221096653 is a deficient number, since it is larger than the sum of its proper divisors (295155).

221096653 is an equidigital number, since it uses as much as digits as its factorization.

221096653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295154.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 221096653 is about 14869.3191841456. The cubic root of 221096653 is about 604.6824853054.

The spelling of 221096653 in words is "two hundred twenty-one million, ninety-six thousand, six hundred fifty-three".