222342152540 has 96 divisors (see below), whose sum is σ = 481995360000. Its totient is φ = 86120552960.

The previous prime is 222342152521. The next prime is 222342152561. The reversal of 222342152540 is 45251243222.

It is a super-2 number, since 2×222342152540² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222342152497 and 222342152506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21172211 + ... + 21182709.

It is an arithmetic number, because the mean of its divisors is an integer number (5020785000).

Almost surely, 2^222342152540 is an apocalyptic number.

222342152540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222342152540 is an abundant number, since it is smaller than the sum of its proper divisors (259653207460).

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

222342152540 is a wasteful number, since it uses less digits than its factorization.

222342152540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10835 (or 10833 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 222342152540 its reverse (45251243222), we get a palindrome (267593395762).

The spelling of 222342152540 in words is "two hundred twenty-two billion, three hundred forty-two million, one hundred fifty-two thousand, five hundred forty".