720228222 has 192 divisors, whose sum is σ = 1981324800. Its totient is φ = 184412160.

The previous prime is 720228217. The next prime is 720228247. The reversal of 720228222 is 222822027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5181429 + ... + 5181567.

It is an arithmetic number, because the mean of its divisors is an integer number (10319400).

Almost surely, 2^720228222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 720228222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (990662400).

720228222 is an abundant number, since it is smaller than the sum of its proper divisors (1261096578).

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

720228222 is a wasteful number, since it uses less digits than its factorization.

720228222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 720228222 is about 26837.0680589367. The cubic root of 720228222 is about 896.3756388587.

The spelling of 720228222 in words is "seven hundred twenty million, two hundred twenty-eight thousand, two hundred twenty-two".