140212201 has 4 divisors (see below), whose sum is σ = 140356692. Its totient is φ = 140067712.

The previous prime is 140212199. The next prime is 140212213. The reversal of 140212201 is 102212041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102212041 = 17 ⋅6012473.

It can be written as a sum of positive squares in 2 ways, for example, as 103002201 + 37210000 = 10149^2 + 6100^2 .

It is a cyclic number.

It is not a de Polignac number, because 140212201 - 2¹ = 140212199 is a prime.

It is a super-2 number, since 2×140212201² = 39318922618528802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140212801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70780 + ... + 72733.

It is an arithmetic number, because the mean of its divisors is an integer number (35089173).

Almost surely, 2^140212201 is an apocalyptic number.

It is an amenable number.

140212201 is a deficient number, since it is larger than the sum of its proper divisors (144491).

140212201 is an equidigital number, since it uses as much as digits as its factorization.

140212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144490.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 140212201 is about 11841.1232997550. The cubic root of 140212201 is about 519.5116235681.

Adding to 140212201 its reverse (102212041), we get a palindrome (242424242).

The spelling of 140212201 in words is "one hundred forty million, two hundred twelve thousand, two hundred one".