7221507142860 has 36 divisors (see below), whose sum is σ = 21905238333888. Its totient is φ = 1925735238048.

The previous prime is 7221507142849. The next prime is 7221507142891. The reversal of 7221507142860 is 682417051227.

7221507142860 is a `hidden beast` number, since 7 + 2 + 2 + 150 + 71 + 428 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20059741884 + ... + 20059742243.

It is an arithmetic number, because the mean of its divisors is an integer number (608478842608).

Almost surely, 2^{7221507142860} is an apocalyptic number.

It is an amenable number.

7221507142860 is an abundant number, since it is smaller than the sum of its proper divisors (14683731191028).

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

7221507142860 is a wasteful number, since it uses less digits than its factorization.

7221507142860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40119484142 (or 40119484137 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 7221507142860 in words is "seven trillion, two hundred twenty-one billion, five hundred seven million, one hundred forty-two thousand, eight hundred sixty".