140122673221 has 2 divisors, whose sum is σ = 140122673222. Its totient is φ = 140122673220.

The previous prime is 140122673189. The next prime is 140122673267. The reversal of 140122673221 is 122376221041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130599840996 + 9522832225 = 361386^2 + 97585^2 .

It is a cyclic number.

It is not a de Polignac number, because 140122673221 - 2⁵ = 140122673189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140122673291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70061336610 + 70061336611.

It is an arithmetic number, because the mean of its divisors is an integer number (70061336611).

Almost surely, 2^140122673221 is an apocalyptic number.

It is an amenable number.

140122673221 is a deficient number, since it is larger than the sum of its proper divisors (1).

140122673221 is an equidigital number, since it uses as much as digits as its factorization.

140122673221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

Adding to 140122673221 its reverse (122376221041), we get a palindrome (262498894262).

The spelling of 140122673221 in words is "one hundred forty billion, one hundred twenty-two million, six hundred seventy-three thousand, two hundred twenty-one".