222012242340 has 192 divisors, whose sum is σ = 766071613440. Its totient is φ = 46902205440.

The previous prime is 222012242311. The next prime is 222012242399. The reversal of 222012242340 is 43242210222.

It is a self number, because there is not a number n which added to its sum of digits gives 222012242340.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12102 + ... + 666461.

It is an arithmetic number, because the mean of its divisors is an integer number (3989956320).

Almost surely, 2^222012242340 is an apocalyptic number.

222012242340 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 222012242340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383035806720).

222012242340 is an abundant number, since it is smaller than the sum of its proper divisors (544059371100).

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

222012242340 is a wasteful number, since it uses less digits than its factorization.

222012242340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678642 (or 678640 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 222012242340 its reverse (43242210222), we get a palindrome (265254452562).

The spelling of 222012242340 in words is "two hundred twenty-two billion, twelve million, two hundred forty-two thousand, three hundred forty".