222238787660 has 24 divisors (see below), whose sum is σ = 467480613600. Its totient is φ = 88747103744.

The previous prime is 222238787647. The next prime is 222238787713. The reversal of 222238787660 is 66787832222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9263429 + ... + 9287388.

It is an arithmetic number, because the mean of its divisors is an integer number (19478358900).

Almost surely, 2^222238787660 is an apocalyptic number.

222238787660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222238787660 is an abundant number, since it is smaller than the sum of its proper divisors (245241825940).

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

222238787660 is a wasteful number, since it uses less digits than its factorization.

222238787660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18551425 (or 18551423 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 53.

The spelling of 222238787660 in words is "two hundred twenty-two billion, two hundred thirty-eight million, seven hundred eighty-seven thousand, six hundred sixty".