221046718707 has 6 divisors (see below), whose sum is σ = 319289704812. Its totient is φ = 147364479132.

The previous prime is 221046718699. The next prime is 221046718729. The reversal of 221046718707 is 707817640122.

221046718707 is a `hidden beast` number, since 2 + 2 + 1 + 0 + 467 + 187 + 0 + 7 = 666.

It is not a de Polignac number, because 221046718707 - 2³ = 221046718699 is a prime.

It is a super-2 number, since 2×221046718707² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221046718507) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12280373253 + ... + 12280373270.

It is an arithmetic number, because the mean of its divisors is an integer number (53214950802).

Almost surely, 2^221046718707 is an apocalyptic number.

221046718707 is a deficient number, since it is larger than the sum of its proper divisors (98242986105).

221046718707 is a wasteful number, since it uses less digits than its factorization.

221046718707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24560746529 (or 24560746526 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The spelling of 221046718707 in words is "two hundred twenty-one billion, forty-six million, seven hundred eighteen thousand, seven hundred seven".