222247140 has 24 divisors (see below), whose sum is σ = 622292160. Its totient is φ = 59265888.

The previous prime is 222247139. The next prime is 222247147. The reversal of 222247140 is 41742222.

It is a self number, because there is not a number n which added to its sum of digits gives 222247140.

It is not an unprimeable number, because it can be changed into a prime (222247147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1852000 + ... + 1852119.

It is an arithmetic number, because the mean of its divisors is an integer number (25928840).

Almost surely, 2^222247140 is an apocalyptic number.

222247140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222247140 is an abundant number, since it is smaller than the sum of its proper divisors (400045020).

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

222247140 is a wasteful number, since it uses less digits than its factorization.

222247140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3704131 (or 3704129 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 222247140 is about 14907.9555942456. The cubic root of 222247140 is about 605.7295027348.

Adding to 222247140 its reverse (41742222), we get a palindrome (263989362).

The spelling of 222247140 in words is "two hundred twenty-two million, two hundred forty-seven thousand, one hundred forty".