140112420423221 has 16 divisors (see below), whose sum is σ = 146564508460800. Its totient is φ = 133690365122688.

The previous prime is 140112420423181. The next prime is 140112420423307. The reversal of 140112420423221 is 122324024211041.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140112420423221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140112420423421) 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, 661460195 + ... + 661671983.

It is an arithmetic number, because the mean of its divisors is an integer number (9160281778800).

Almost surely, 2^{140112420423221} is an apocalyptic number.

It is an amenable number.

140112420423221 is a deficient number, since it is larger than the sum of its proper divisors (6452088037579).

140112420423221 is a wasteful number, since it uses less digits than its factorization.

140112420423221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282548.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 140112420423221 its reverse (122324024211041), we get a palindrome (262436444634262).

The spelling of 140112420423221 in words is "one hundred forty trillion, one hundred twelve billion, four hundred twenty million, four hundred twenty-three thousand, two hundred twenty-one".