222231213240 has 64 divisors (see below), whose sum is σ = 666925608960. Its totient is φ = 59241037440.

The previous prime is 222231213209. The next prime is 222231213263. The reversal of 222231213240 is 42312132222.

222231213240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 222231213240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25705 + ... + 667175.

It is an arithmetic number, because the mean of its divisors is an integer number (10420712640).

Almost surely, 2^222231213240 is an apocalyptic number.

222231213240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222231213240 is an abundant number, since it is smaller than the sum of its proper divisors (444694395720).

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

222231213240 is a wasteful number, since it uses less digits than its factorization.

222231213240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644372 (or 644368 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 222231213240 its reverse (42312132222), we get a palindrome (264543345462).

The spelling of 222231213240 in words is "two hundred twenty-two billion, two hundred thirty-one million, two hundred thirteen thousand, two hundred forty".