222321045302540 has 96 divisors (see below), whose sum is σ = 471056004486144. Its totient is φ = 88136003208960.

The previous prime is 222321045302509. The next prime is 222321045302549. The reversal of 222321045302540 is 45203540123222.

222321045302540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 222321045302540.

It is not an unprimeable number, because it can be changed into a prime (222321045302549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1293508649 + ... + 1293680511.

It is an arithmetic number, because the mean of its divisors is an integer number (4906833380064).

Almost surely, 2^{222321045302540} is an apocalyptic number.

222321045302540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222321045302540 is an abundant number, since it is smaller than the sum of its proper divisors (248734959183604).

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

222321045302540 is a wasteful number, since it uses less digits than its factorization.

222321045302540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173367 (or 173365 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 222321045302540 its reverse (45203540123222), we get a palindrome (267524585425762).

The spelling of 222321045302540 in words is "two hundred twenty-two trillion, three hundred twenty-one billion, forty-five million, three hundred two thousand, five hundred forty".