82228111 has 8 divisors (see below), whose sum is σ = 94519584. Its totient is φ = 70072800.

The previous prime is 82228103. The next prime is 82228117. The reversal of 82228111 is 11182228.

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

It is not a de Polignac number, because 82228111 - 2³ = 82228103 is a prime.

It is a super-2 number, since 2×82228111² = 13522924477256642, 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 (82228117) 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, 32740 + ... + 35161.

It is an arithmetic number, because the mean of its divisors is an integer number (11814948).

Almost surely, 2^82228111 is an apocalyptic number.

82228111 is a deficient number, since it is larger than the sum of its proper divisors (12291473).

82228111 is a wasteful number, since it uses less digits than its factorization.

82228111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68081.

The product of its digits is 512, while the sum is 25.

The square root of 82228111 is about 9067.9717136745. The cubic root of 82228111 is about 434.8506308844.

The spelling of 82228111 in words is "eighty-two million, two hundred twenty-eight thousand, one hundred eleven".