101822 has 12 divisors (see below), whose sum is σ = 177840. Its totient is φ = 43596.

The previous prime is 101807. The next prime is 101833. The reversal of 101822 is 228101.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 101797 and 101806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 422 + ... + 617.

It is an arithmetic number, because the mean of its divisors is an integer number (14820).

2¹⁰¹⁸²² is an apocalyptic number.

101822 is a deficient number, since it is larger than the sum of its proper divisors (76018).

101822 is a wasteful number, since it uses less digits than its factorization.

101822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055 (or 1048 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 101822 is about 319.0955969612. The cubic root of 101822 is about 46.6960925526.

Adding to 101822 its reverse (228101), we get a palindrome (329923).

The spelling of 101822 in words is "one hundred one thousand, eight hundred twenty-two".