221000001007 has 8 divisors (see below), whose sum is σ = 231207060672. Its totient is φ = 211022313600.

The previous prime is 221000000987. The next prime is 221000001059. The reversal of 221000001007 is 700100000122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221000001007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221000601007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57341094 + ... + 57344947.

It is an arithmetic number, because the mean of its divisors is an integer number (28900882584).

Almost surely, 2^221000001007 is an apocalyptic number.

221000001007 is a deficient number, since it is larger than the sum of its proper divisors (10207059665).

221000001007 is a wasteful number, since it uses less digits than its factorization.

221000001007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114686129.

The product of its (nonzero) digits is 28, while the sum is 13.

Adding to 221000001007 its reverse (700100000122), we get a palindrome (921100001129).

The spelling of 221000001007 in words is "two hundred twenty-one billion, one thousand, seven".