4244220402091 has 2 divisors, whose sum is σ = 4244220402092. Its totient is φ = 4244220402090.

The previous prime is 4244220402083. The next prime is 4244220402131. The reversal of 4244220402091 is 1902040224424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4244220402091 - 2³ = 4244220402083 is a prime.

It is not a weakly prime, because it can be changed into another prime (4244220402001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2122110201045 + 2122110201046.

It is an arithmetic number, because the mean of its divisors is an integer number (2122110201046).

Almost surely, 2^{4244220402091} is an apocalyptic number.

4244220402091 is a deficient number, since it is larger than the sum of its proper divisors (1).

4244220402091 is an equidigital number, since it uses as much as digits as its factorization.

4244220402091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 34.

The spelling of 4244220402091 in words is "four trillion, two hundred forty-four billion, two hundred twenty million, four hundred two thousand, ninety-one".