10221914 has 4 divisors (see below), whose sum is σ = 15332874. Its totient is φ = 5110956.

The previous prime is 10221901. The next prime is 10221919. The reversal of 10221914 is 41912201.

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

It can be written as a sum of positive squares in only one way, i.e., 8219689 + 2002225 = 2867^2 + 1415^2 .

It is not an unprimeable number, because it can be changed into a prime (10221919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555477 + ... + 2555480.

Almost surely, 2^10221914 is an apocalyptic number.

10221914 is a deficient number, since it is larger than the sum of its proper divisors (5110960).

10221914 is an equidigital number, since it uses as much as digits as its factorization.

10221914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110959.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 10221914 is about 3197.1728135964. The cubic root of 10221914 is about 217.0254877436.

The spelling of 10221914 in words is "ten million, two hundred twenty-one thousand, nine hundred fourteen".