10421822 has 4 divisors (see below), whose sum is σ = 15632736. Its totient is φ = 5210910.

The previous prime is 10421791. The next prime is 10421837. The reversal of 10421822 is 22812401.

It is a happy number.

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

It is a super-2 number, since 2×10421822² = 217228747599368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10421794 and 10421803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2605454 + ... + 2605457.

It is an arithmetic number, because the mean of its divisors is an integer number (3908184).

Almost surely, 2^10421822 is an apocalyptic number.

10421822 is a deficient number, since it is larger than the sum of its proper divisors (5210914).

10421822 is an equidigital number, since it uses as much as digits as its factorization.

10421822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5210913.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 10421822 is about 3228.2846838530. The cubic root of 10421822 is about 218.4311390299.

The spelling of 10421822 in words is "ten million, four hundred twenty-one thousand, eight hundred twenty-two".