822226981 has 8 divisors (see below), whose sum is σ = 898677504. Its totient is φ = 748896960.

The previous prime is 822226973. The next prime is 822227011. The reversal of 822226981 is 189622228.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 822226981 - 2³ = 822226973 is a prime.

It is a super-2 number, since 2×822226981² = 1352114416568748722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822226901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 779575 + ... + 780628.

It is an arithmetic number, because the mean of its divisors is an integer number (112334688).

Almost surely, 2^822226981 is an apocalyptic number.

It is an amenable number.

822226981 is a deficient number, since it is larger than the sum of its proper divisors (76450523).

822226981 is a wasteful number, since it uses less digits than its factorization.

822226981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560251.

The product of its digits is 55296, while the sum is 40.

The square root of 822226981 is about 28674.5005361907. The cubic root of 822226981 is about 936.8367266073.

The spelling of 822226981 in words is "eight hundred twenty-two million, two hundred twenty-six thousand, nine hundred eighty-one".