921022 has 8 divisors (see below), whose sum is σ = 1386000. Its totient is φ = 459024.

The previous prime is 921013. The next prime is 921029. The reversal of 921022 is 220129.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 920987 and 921005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (921029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354 + ... + 1402.

It is an arithmetic number, because the mean of its divisors is an integer number (173250).

2⁹²¹⁰²² is an apocalyptic number.

921022 is a deficient number, since it is larger than the sum of its proper divisors (464978).

921022 is a wasteful number, since it uses less digits than its factorization.

921022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 921022 is about 959.6989111174. The cubic root of 921022 is about 97.2948832720.

The spelling of 921022 in words is "nine hundred twenty-one thousand, twenty-two".