221700458907 has 48 divisors (see below), whose sum is σ = 324246780000. Its totient is φ = 145962819072.

The previous prime is 221700458897. The next prime is 221700458929. The reversal of 221700458907 is 709854007122.

It is a happy number.

221700458907 is a `hidden beast` number, since 22 + 170 + 0 + 458 + 9 + 0 + 7 = 666.

221700458907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221700458907 - 2⁶ = 221700458843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221700458957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 258693223 + ... + 258694079.

It is an arithmetic number, because the mean of its divisors is an integer number (6755141250).

Almost surely, 2^221700458907 is an apocalyptic number.

221700458907 is a deficient number, since it is larger than the sum of its proper divisors (102546321093).

221700458907 is a wasteful number, since it uses less digits than its factorization.

221700458907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900 (or 1897 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

It can be divided in two parts, 2217004 and 58907, that added together give a triangular number (2275911 = T₂₁₃₃).

The spelling of 221700458907 in words is "two hundred twenty-one billion, seven hundred million, four hundred fifty-eight thousand, nine hundred seven".