140023440221 has 12 divisors (see below), whose sum is σ = 162891781920. Its totient is φ = 120014659800.

The previous prime is 140023440191. The next prime is 140023440233. The reversal of 140023440221 is 122044320041.

It is not a de Polignac number, because 140023440221 - 2²² = 140019245917 is a prime.

It is a super-2 number, since 2×140023440221² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140023448221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1335146 + ... + 1436196.

It is an arithmetic number, because the mean of its divisors is an integer number (13574315160).

Almost surely, 2^140023440221 is an apocalyptic number.

It is an amenable number.

140023440221 is a deficient number, since it is larger than the sum of its proper divisors (22868341699).

140023440221 is a wasteful number, since it uses less digits than its factorization.

140023440221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129344 (or 129337 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 140023440221 its reverse (122044320041), we get a palindrome (262067760262).

The spelling of 140023440221 in words is "one hundred forty billion, twenty-three million, four hundred forty thousand, two hundred twenty-one".