10898221 has 4 divisors (see below), whose sum is σ = 11151712. Its totient is φ = 10644732.

The previous prime is 10898201. The next prime is 10898227. The reversal of 10898221 is 12289801.

It is a happy number.

10898221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10898221 - 2⁵ = 10898189 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 (10898227) 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, 126681 + ... + 126766.

It is an arithmetic number, because the mean of its divisors is an integer number (2787928).

Almost surely, 2^10898221 is an apocalyptic number.

It is an amenable number.

10898221 is a deficient number, since it is larger than the sum of its proper divisors (253491).

10898221 is an equidigital number, since it uses as much as digits as its factorization.

10898221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253490.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 10898221 is about 3301.2453710683. The cubic root of 10898221 is about 221.7099599486.

The spelling of 10898221 in words is "ten million, eight hundred ninety-eight thousand, two hundred twenty-one".