220101321439 has 2 divisors, whose sum is σ = 220101321440. Its totient is φ = 220101321438.

The previous prime is 220101321421. The next prime is 220101321497. The reversal of 220101321439 is 934123101022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220101321439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220101322439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110050660719 + 110050660720.

It is an arithmetic number, because the mean of its divisors is an integer number (110050660720).

Almost surely, 2^220101321439 is an apocalyptic number.

220101321439 is a deficient number, since it is larger than the sum of its proper divisors (1).

220101321439 is an equidigital number, since it uses as much as digits as its factorization.

220101321439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 220101321439 in words is "two hundred twenty billion, one hundred one million, three hundred twenty-one thousand, four hundred thirty-nine".