140123224434221 has 16 divisors (see below), whose sum is σ = 162882323312640. Its totient is φ = 118062894334320.

The previous prime is 140123224434199. The next prime is 140123224434239. The reversal of 140123224434221 is 122434422321041.

It is a cyclic number.

It is not a de Polignac number, because 140123224434221 - 2¹⁰ = 140123224433197 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 (140123224431221) 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, 557996465 + ... + 558247526.

It is an arithmetic number, because the mean of its divisors is an integer number (10180145207040).

Almost surely, 2^{140123224434221} is an apocalyptic number.

It is an amenable number.

140123224434221 is a deficient number, since it is larger than the sum of its proper divisors (22759098878419).

140123224434221 is a wasteful number, since it uses less digits than its factorization.

140123224434221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116244304.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 140123224434221 its reverse (122434422321041), we get a palindrome (262557646755262).

The spelling of 140123224434221 in words is "one hundred forty trillion, one hundred twenty-three billion, two hundred twenty-four million, four hundred thirty-four thousand, two hundred twenty-one".