222139260 has 240 divisors, whose sum is σ = 839139840. Its totient is φ = 48055680.

The previous prime is 222139259. The next prime is 222139261. The reversal of 222139260 is 62931222.

222139260 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (222139259) and next prime (222139261).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222139261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 214945 + ... + 215975.

It is an arithmetic number, because the mean of its divisors is an integer number (3496416).

Almost surely, 2^222139260 is an apocalyptic number.

222139260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222139260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419569920).

222139260 is an abundant number, since it is smaller than the sum of its proper divisors (617000580).

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

222139260 is a wasteful number, since it uses less digits than its factorization.

222139260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 222139260 is about 14904.3369527128. The cubic root of 222139260 is about 605.6314787142.

The spelling of 222139260 in words is "two hundred twenty-two million, one hundred thirty-nine thousand, two hundred sixty".