222217161020 has 24 divisors (see below), whose sum is σ = 466683604800. Its totient is φ = 88881613632.

The previous prime is 222217161017. The next prime is 222217161071. The reversal of 222217161020 is 20161712222.

It is a congruent number.

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, 28301 + ... + 667259.

It is an arithmetic number, because the mean of its divisors is an integer number (19445150200).

Almost surely, 2^222217161020 is an apocalyptic number.

222217161020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222217161020 is an abundant number, since it is smaller than the sum of its proper divisors (244466443780).

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

222217161020 is a wasteful number, since it uses less digits than its factorization.

222217161020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656357 (or 656355 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 222217161020 its reverse (20161712222), we get a palindrome (242378873242).

The spelling of 222217161020 in words is "two hundred twenty-two billion, two hundred seventeen million, one hundred sixty-one thousand, twenty".