220111122122123 has 8 divisors (see below), whose sum is σ = 227212057239936. Its totient is φ = 213010223025600.

The previous prime is 220111122122107. The next prime is 220111122122219. The reversal of 220111122122123 is 321221221111022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220111122122123 - 2⁴ = 220111122122107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220111112122123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3697415 + ... + 21304767.

It is an arithmetic number, because the mean of its divisors is an integer number (28401507154992).

Almost surely, 2^{220111122122123} is an apocalyptic number.

220111122122123 is a deficient number, since it is larger than the sum of its proper divisors (7100935117813).

220111122122123 is a wasteful number, since it uses less digits than its factorization.

220111122122123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18010645.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 220111122122123 its reverse (321221221111022), we get a palindrome (541332343233145).

The spelling of 220111122122123 in words is "two hundred twenty trillion, one hundred eleven billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty-three".