222205778082 has 54 divisors (see below), whose sum is σ = 485584453809. Its totient is φ = 73437282720.

The previous prime is 222205778063. The next prime is 222205778089. The reversal of 222205778082 is 280877502222.

222205778082 is a `hidden beast` number, since 222 + 205 + 77 + 80 + 82 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 220495045761 + 1710732321 = 469569^2 + 41361^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=333321.

It is not an unprimeable number, because it can be changed into a prime (222205778089) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 273989457 + ... + 273990267.

Almost surely, 2^222205778082 is an apocalyptic number.

222205778082 is an abundant number, since it is smaller than the sum of its proper divisors (263378675727).

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

222205778082 is an frugal number, since it uses more digits than its factorization.

222205778082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904 (or 953 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 45.

The spelling of 222205778082 in words is "two hundred twenty-two billion, two hundred five million, seven hundred seventy-eight thousand, eighty-two".