10221899 has 2 divisors, whose sum is σ = 10221900. Its totient is φ = 10221898.

The previous prime is 10221877. The next prime is 10221901. The reversal of 10221899 is 99812201.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (99812201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10221899 - 2¹² = 10217803 is a prime.

Together with 10221901, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10226899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110949 + 5110950.

It is an arithmetic number, because the mean of its divisors is an integer number (5110950).

Almost surely, 2^10221899 is an apocalyptic number.

10221899 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221899 is an equidigital number, since it uses as much as digits as its factorization.

10221899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 10221899 is about 3197.1704677730. The cubic root of 10221899 is about 217.0253815866.

The spelling of 10221899 in words is "ten million, two hundred twenty-one thousand, eight hundred ninety-nine".