122234567789 has 4 divisors (see below), whose sum is σ = 122513006880. Its totient is φ = 121956128700.

The previous prime is 122234567783. The next prime is 122234567809. The reversal of 122234567789 is 987765432221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 987765432221 = 37 ⋅26696363033.

It is a cyclic number.

It is not a de Polignac number, because 122234567789 - 2¹⁶ = 122234502253 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122234567783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139218887 + ... + 139219764.

It is an arithmetic number, because the mean of its divisors is an integer number (30628251720).

Almost surely, 2^122234567789 is an apocalyptic number.

It is an amenable number.

122234567789 is a deficient number, since it is larger than the sum of its proper divisors (278439091).

122234567789 is an equidigital number, since it uses as much as digits as its factorization.

122234567789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278439090.

The product of its digits is 10160640, while the sum is 56.

The spelling of 122234567789 in words is "one hundred twenty-two billion, two hundred thirty-four million, five hundred sixty-seven thousand, seven hundred eighty-nine".