140043234032221 has 16 divisors (see below), whose sum is σ = 160115423784624. Its totient is φ = 121340336292864.

The previous prime is 140043234032213. The next prime is 140043234032249. The reversal of 140043234032221 is 122230432340041.

It can be written as a sum of positive squares in 8 ways, for example, as 1578003266596 + 138465230765625 = 1256186^2 + 11767125^2 .

It is not a de Polignac number, because 140043234032221 - 2³ = 140043234032213 is a prime.

It is a super-2 number, since 2×140043234032221² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140043234030221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 849354286 + ... + 849519151.

It is an arithmetic number, because the mean of its divisors is an integer number (10007213986539).

Almost surely, 2^{140043234032221} is an apocalyptic number.

It is an amenable number.

140043234032221 is a deficient number, since it is larger than the sum of its proper divisors (20072189752403).

140043234032221 is a wasteful number, since it uses less digits than its factorization.

140043234032221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698873840.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 140043234032221 its reverse (122230432340041), we get a palindrome (262273666372262).

The spelling of 140043234032221 in words is "one hundred forty trillion, forty-three billion, two hundred thirty-four million, thirty-two thousand, two hundred twenty-one".