222261270 has 96 divisors (see below), whose sum is σ = 670166784. Its totient is φ = 46178880.

The previous prime is 222261251. The next prime is 222261271. The reversal of 222261270 is 72162222.

It is a self number, because there is not a number n which added to its sum of digits gives 222261270.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222261271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21037 + ... + 29783.

It is an arithmetic number, because the mean of its divisors is an integer number (6980904).

Almost surely, 2^222261270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222261270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335083392).

222261270 is an abundant number, since it is smaller than the sum of its proper divisors (447905514).

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

222261270 is a wasteful number, since it uses less digits than its factorization.

222261270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8786 (or 8775 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 222261270 is about 14908.4294947523. The cubic root of 222261270 is about 605.7423394602.

The spelling of 222261270 in words is "two hundred twenty-two million, two hundred sixty-one thousand, two hundred seventy".