222140 has 24 divisors (see below), whose sum is σ = 483840. Its totient is φ = 85568.

The previous prime is 222137. The next prime is 222149. The reversal of 222140 is 41222.

222140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389 + ... + 771.

It is an arithmetic number, because the mean of its divisors is an integer number (20160).

2²²²¹⁴⁰ is an apocalyptic number.

222140 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 222140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241920).

222140 is an abundant number, since it is smaller than the sum of its proper divisors (261700).

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

222140 is a wasteful number, since it uses less digits than its factorization.

222140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 222140 is about 471.3173028863. The cubic root of 222140 is about 60.5632151215.

Adding to 222140 its reverse (41222), we get a palindrome (263362).

The spelling of 222140 in words is "two hundred twenty-two thousand, one hundred forty", and thus it is an iban number.