82222212 has 24 divisors (see below), whose sum is σ = 192005856. Its totient is φ = 27385408.

The previous prime is 82222193. The next prime is 82222219. The reversal of 82222212 is 21222228.

It is not an unprimeable number, because it can be changed into a prime (82222219) 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, 21088 + ... + 24680.

It is an arithmetic number, because the mean of its divisors is an integer number (8000244).

Almost surely, 2^82222212 is an apocalyptic number.

It is an amenable number.

82222212 is an abundant number, since it is smaller than the sum of its proper divisors (109783644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82222212 is a wasteful number, since it uses less digits than its factorization.

82222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5507 (or 5505 counting only the distinct ones).

The product of its digits is 512, while the sum is 21.

The square root of 82222212 is about 9067.6464421591. The cubic root of 82222212 is about 434.8402319864.

The spelling of 82222212 in words is "eighty-two million, two hundred twenty-two thousand, two hundred twelve".