2102222120123 has 4 divisors (see below), whose sum is σ = 2103156028248. Its totient is φ = 2101288212000.

The previous prime is 2102222120083. The next prime is 2102222120137. The reversal of 2102222120123 is 3210212222012.

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 2102222120123 - 2⁸ = 2102222119867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102222120095 and 2102222120104.

It is not an unprimeable number, because it can be changed into a prime (2102222129123) 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, 466950686 + ... + 466955187.

It is an arithmetic number, because the mean of its divisors is an integer number (525789007062).

Almost surely, 2^{2102222120123} is an apocalyptic number.

2102222120123 is a deficient number, since it is larger than the sum of its proper divisors (933908125).

2102222120123 is an equidigital number, since it uses as much as digits as its factorization.

2102222120123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933908124.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2102222120123 its reverse (3210212222012), we get a palindrome (5312434342135).

The spelling of 2102222120123 in words is "two trillion, one hundred two billion, two hundred twenty-two million, one hundred twenty thousand, one hundred twenty-three".