222323121122540 has 96 divisors (see below), whose sum is σ = 478159978512384. Its totient is φ = 86791439577600.

The previous prime is 222323121122533. The next prime is 222323121122549. The reversal of 222323121122540 is 45221121323222.

222323121122540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 222323121122497 and 222323121122506.

It is not an unprimeable number, because it can be changed into a prime (222323121122549) 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, 487315217 + ... + 487771223.

It is an arithmetic number, because the mean of its divisors is an integer number (4980833109504).

Almost surely, 2^{222323121122540} is an apocalyptic number.

222323121122540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222323121122540 is an abundant number, since it is smaller than the sum of its proper divisors (255836857389844).

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

222323121122540 is a wasteful number, since it uses less digits than its factorization.

222323121122540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457527 (or 457525 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 222323121122540 its reverse (45221121323222), we get a palindrome (267544242445762).

The spelling of 222323121122540 in words is "two hundred twenty-two trillion, three hundred twenty-three billion, one hundred twenty-one million, one hundred twenty-two thousand, five hundred forty".