4350120220891 has 2 divisors, whose sum is σ = 4350120220892. Its totient is φ = 4350120220890.

The previous prime is 4350120220843. The next prime is 4350120220951. The reversal of 4350120220891 is 1980220210534.

4350120220891 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4350120220891 - 2²⁷ = 4349986003163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4350120220891.

It is not a weakly prime, because it can be changed into another prime (4350120290891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2175060110445 + 2175060110446.

It is an arithmetic number, because the mean of its divisors is an integer number (2175060110446).

Almost surely, 2^{4350120220891} is an apocalyptic number.

4350120220891 is a deficient number, since it is larger than the sum of its proper divisors (1).

4350120220891 is an equidigital number, since it uses as much as digits as its factorization.

4350120220891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 4350120220891 in words is "four trillion, three hundred fifty billion, one hundred twenty million, two hundred twenty thousand, eight hundred ninety-one".