22404420031243 has 2 divisors, whose sum is σ = 22404420031244. Its totient is φ = 22404420031242.

The previous prime is 22404420031139. The next prime is 22404420031261. The reversal of 22404420031243 is 34213002440422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22404420031243 - 2¹⁷ = 22404419900171 is a prime.

It is a super-2 number, since 2×22404420031243² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22404420037243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11202210015621 + 11202210015622.

It is an arithmetic number, because the mean of its divisors is an integer number (11202210015622).

Almost surely, 2^{22404420031243} is an apocalyptic number.

22404420031243 is a deficient number, since it is larger than the sum of its proper divisors (1).

22404420031243 is an equidigital number, since it uses as much as digits as its factorization.

22404420031243 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 31.

Adding to 22404420031243 its reverse (34213002440422), we get a palindrome (56617422471665).

The spelling of 22404420031243 in words is "twenty-two trillion, four hundred four billion, four hundred twenty million, thirty-one thousand, two hundred forty-three".