140233221200021 has 4 divisors (see below), whose sum is σ = 140300999462700. Its totient is φ = 140165442937344.

The previous prime is 140233221200003. The next prime is 140233221200071. The reversal of 140233221200021 is 120002122332041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13987525200100 + 126245695999921 = 3739990^2 + 11235911^2 .

It is a cyclic number.

It is not a de Polignac number, because 140233221200021 - 2⁶ = 140233221199957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140233221200021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140233221200071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33889128236 + ... + 33889132373.

It is an arithmetic number, because the mean of its divisors is an integer number (35075249865675).

Almost surely, 2^{140233221200021} is an apocalyptic number.

It is an amenable number.

140233221200021 is a deficient number, since it is larger than the sum of its proper divisors (67778262679).

140233221200021 is an equidigital number, since it uses as much as digits as its factorization.

140233221200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67778262678.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 140233221200021 its reverse (120002122332041), we get a palindrome (260235343532062).

The spelling of 140233221200021 in words is "one hundred forty trillion, two hundred thirty-three billion, two hundred twenty-one million, two hundred thousand, twenty-one".