7218643222150 has 12 divisors (see below), whose sum is σ = 13426676393292. Its totient is φ = 2887457288840.

The previous prime is 7218643222099. The next prime is 7218643222169. The reversal of 7218643222150 is 512223468127.

It is a junction number, because it is equal to n+sod(n) for n = 7218643222097 and 7218643222106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72186432172 + ... + 72186432271.

It is an arithmetic number, because the mean of its divisors is an integer number (1118889699441).

Almost surely, 2^{7218643222150} is an apocalyptic number.

7218643222150 is a deficient number, since it is larger than the sum of its proper divisors (6208033171142).

7218643222150 is a wasteful number, since it uses less digits than its factorization.

7218643222150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144372864455 (or 144372864450 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 7218643222150 in words is "seven trillion, two hundred eighteen billion, six hundred forty-three million, two hundred twenty-two thousand, one hundred fifty".