2120122102123 has 4 divisors (see below), whose sum is σ = 2120174001288. Its totient is φ = 2120070202960.

The previous prime is 2120122102121. The next prime is 2120122102129. The reversal of 2120122102123 is 3212012210212.

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 2120122102123 - 2¹ = 2120122102121 is a prime.

It is a super-2 number, since 2×2120122102123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2120122102123.

It is not an unprimeable number, because it can be changed into a prime (2120122102121) 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, 25888258 + ... + 25970023.

It is an arithmetic number, because the mean of its divisors is an integer number (530043500322).

Almost surely, 2^{2120122102123} is an apocalyptic number.

2120122102123 is a deficient number, since it is larger than the sum of its proper divisors (51899165).

2120122102123 is an equidigital number, since it uses as much as digits as its factorization.

2120122102123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51899164.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2120122102123 its reverse (3212012210212), we get a palindrome (5332134312335).

It can be divided in two parts, 212012210212 and 3, that multiplied together give a palindrome (636036630636).

The spelling of 2120122102123 in words is "two trillion, one hundred twenty billion, one hundred twenty-two million, one hundred two thousand, one hundred twenty-three".