140221333909 has 2 divisors, whose sum is σ = 140221333910. Its totient is φ = 140221333908.

The previous prime is 140221333891. The next prime is 140221333921. The reversal of 140221333909 is 909333122041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114618133809 + 25603200100 = 338553^2 + 160010^2 .

It is a cyclic number.

It is not a de Polignac number, because 140221333909 - 2¹⁹ = 140220809621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140221337909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70110666954 + 70110666955.

It is an arithmetic number, because the mean of its divisors is an integer number (70110666955).

Almost surely, 2^140221333909 is an apocalyptic number.

It is an amenable number.

140221333909 is a deficient number, since it is larger than the sum of its proper divisors (1).

140221333909 is an equidigital number, since it uses as much as digits as its factorization.

140221333909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 140221333909 in words is "one hundred forty billion, two hundred twenty-one million, three hundred thirty-three thousand, nine hundred nine".