140010221 has 16 divisors (see below), whose sum is σ = 159311040. Its totient is φ = 121979520.

The previous prime is 140010209. The next prime is 140010239. The reversal of 140010221 is 122010041.

It is not a de Polignac number, because 140010221 - 2²⁶ = 72901357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140010251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76406 + ... + 78216.

It is an arithmetic number, because the mean of its divisors is an integer number (9956940).

Almost surely, 2^140010221 is an apocalyptic number.

It is an amenable number.

140010221 is a deficient number, since it is larger than the sum of its proper divisors (19300819).

140010221 is a wasteful number, since it uses less digits than its factorization.

140010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 140010221 is about 11832.5914743982. The cubic root of 140010221 is about 519.2620461829.

Adding to 140010221 its reverse (122010041), we get a palindrome (262020262).

The spelling of 140010221 in words is "one hundred forty million, ten thousand, two hundred twenty-one".