10221814 has 4 divisors (see below), whose sum is σ = 15332724. Its totient is φ = 5110906.

The previous prime is 10221803. The next prime is 10221853. The reversal of 10221814 is 41812201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 10221791 and 10221800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555452 + ... + 2555455.

It is an arithmetic number, because the mean of its divisors is an integer number (3833181).

Almost surely, 2^10221814 is an apocalyptic number.

10221814 is a deficient number, since it is larger than the sum of its proper divisors (5110910).

10221814 is an equidigital number, since it uses as much as digits as its factorization.

10221814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5110909.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 10221814 is about 3197.1571747413. The cubic root of 10221814 is about 217.0247800282.

The spelling of 10221814 in words is "ten million, two hundred twenty-one thousand, eight hundred fourteen".