7221266554275 has 48 divisors (see below), whose sum is σ = 13463730230400. Its totient is φ = 3793859419680.

The previous prime is 7221266554261. The next prime is 7221266554277. The reversal of 7221266554275 is 5724556621227.

7221266554275 is a `hidden beast` number, since 7 + 2 + 2 + 1 + 2 + 66 + 554 + 27 + 5 = 666.

It is not a de Polignac number, because 7221266554275 - 2⁴ = 7221266554259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7221266554277) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79791885 + ... + 79882334.

It is an arithmetic number, because the mean of its divisors is an integer number (280494379800).

Almost surely, 2^{7221266554275} is an apocalyptic number.

7221266554275 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

7221266554275 is a deficient number, since it is larger than the sum of its proper divisors (6242463676125).

7221266554275 is a wasteful number, since it uses less digits than its factorization.

7221266554275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159674305 (or 159674294 counting only the distinct ones).

The product of its digits is 14112000, while the sum is 54.

The spelling of 7221266554275 in words is "seven trillion, two hundred twenty-one billion, two hundred sixty-six million, five hundred fifty-four thousand, two hundred seventy-five".