20022442444429 has 2 divisors, whose sum is σ = 20022442444430. Its totient is φ = 20022442444428.

The previous prime is 20022442444409. The next prime is 20022442444439. The reversal of 20022442444429 is 92444424422002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13283823511204 + 6738618933225 = 3644698^2 + 2595885^2 .

It is a cyclic number.

It is not a de Polignac number, because 20022442444429 - 2⁵ = 20022442444397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20022442444409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011221222214 + 10011221222215.

It is an arithmetic number, because the mean of its divisors is an integer number (10011221222215).

Almost surely, 2^{20022442444429} is an apocalyptic number.

It is an amenable number.

20022442444429 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022442444429 is an equidigital number, since it uses as much as digits as its factorization.

20022442444429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1179648, while the sum is 43.

The spelling of 20022442444429 in words is "twenty trillion, twenty-two billion, four hundred forty-two million, four hundred forty-four thousand, four hundred twenty-nine".