2102123122 has 8 divisors (see below), whose sum is σ = 3439837872. Its totient is φ = 955510500.

The previous prime is 2102123063. The next prime is 2102123147. The reversal of 2102123122 is 2213212012.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2102123096 and 2102123105.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 47775504 + ... + 47775547.

It is an arithmetic number, because the mean of its divisors is an integer number (429979734).

Almost surely, 2^2102123122 is an apocalyptic number.

2102123122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2102123122 is a deficient number, since it is larger than the sum of its proper divisors (1337714750).

2102123122 is a wasteful number, since it uses less digits than its factorization.

2102123122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95551064.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2102123122 is about 45848.9162576391. The cubic root of 2102123122 is about 1281.0105792825.

Adding to 2102123122 its reverse (2213212012), we get a palindrome (4315335134).

The spelling of 2102123122 in words is "two billion, one hundred two million, one hundred twenty-three thousand, one hundred twenty-two".