10122221123 has 4 divisors (see below), whose sum is σ = 11568252720. Its totient is φ = 8676189528.

The previous prime is 10122221119. The next prime is 10122221147. The reversal of 10122221123 is 32112222101.

10122221123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10122221123 - 2² = 10122221119 is a prime.

It is a super-2 number, since 2×10122221123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10122221423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723015788 + ... + 723015801.

It is an arithmetic number, because the mean of its divisors is an integer number (2892063180).

Almost surely, 2^10122221123 is an apocalyptic number.

10122221123 is a deficient number, since it is larger than the sum of its proper divisors (1446031597).

10122221123 is an equidigital number, since it uses as much as digits as its factorization.

10122221123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446031596.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 10122221123 its reverse (32112222101), we get a palindrome (42234443224).

The spelling of 10122221123 in words is "ten billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty-three".