22420422243 has 8 divisors (see below), whose sum is σ = 33215440400. Its totient is φ = 14946948144.

The previous prime is 22420422217. The next prime is 22420422251. The reversal of 22420422243 is 34222402422.

It is not a de Polignac number, because 22420422243 - 2⁶ = 22420422179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 830386009 = 22420422243 / (2 + 2 + 4 + 2 + 0 + 4 + 2 + 2 + 2 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22420422253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415192978 + ... + 415193031.

It is an arithmetic number, because the mean of its divisors is an integer number (4151930050).

Almost surely, 2^22420422243 is an apocalyptic number.

22420422243 is a deficient number, since it is larger than the sum of its proper divisors (10795018157).

22420422243 is an equidigital number, since it uses as much as digits as its factorization.

22420422243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830386018 (or 830386012 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 22420422243 its reverse (34222402422), we get a palindrome (56642824665).

The spelling of 22420422243 in words is "twenty-two billion, four hundred twenty million, four hundred twenty-two thousand, two hundred forty-three".