7210398166722 has 48 divisors (see below), whose sum is σ = 15751770278400. Its totient is φ = 2383658877600.

The previous prime is 7210398166717. The next prime is 7210398166733. The reversal of 7210398166722 is 2276618930127.

It is a happy number.

7210398166722 is a `hidden beast` number, since 7 + 21 + 0 + 398 + 166 + 72 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2030097 + ... + 4306052.

It is an arithmetic number, because the mean of its divisors is an integer number (328161880800).

Almost surely, 2^{7210398166722} is an apocalyptic number.

7210398166722 is an abundant number, since it is smaller than the sum of its proper divisors (8541372111678).

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

7210398166722 is a wasteful number, since it uses less digits than its factorization.

7210398166722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6336679 (or 6336676 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 7210398166722 in words is "seven trillion, two hundred ten billion, three hundred ninety-eight million, one hundred sixty-six thousand, seven hundred twenty-two".