222322212340 has 24 divisors (see below), whose sum is σ = 467056807560. Its totient is φ = 88894568448.

The previous prime is 222322212271. The next prime is 222322212341. The reversal of 222322212340 is 43212223222.

It can be written as a sum of positive squares in 4 ways, for example, as 14994982116 + 207327230224 = 122454^2 + 455332^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222322212341) 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, 2091625 + ... + 2195344.

It is an arithmetic number, because the mean of its divisors is an integer number (19460700315).

Almost surely, 2^222322212340 is an apocalyptic number.

222322212340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222322212340 is an abundant number, since it is smaller than the sum of its proper divisors (244734595220).

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

222322212340 is a wasteful number, since it uses less digits than its factorization.

222322212340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4289571 (or 4289569 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 222322212340 its reverse (43212223222), we get a palindrome (265534435562).

The spelling of 222322212340 in words is "two hundred twenty-two billion, three hundred twenty-two million, two hundred twelve thousand, three hundred forty".