2120123122 has 8 divisors (see below), whose sum is σ = 3424814316. Its totient is φ = 978518352.

The previous prime is 2120123107. The next prime is 2120123123. The reversal of 2120123122 is 2213210212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1748828761 + 371294361 = 41819^2 + 19269^2 .

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 = 2120123096 and 2120123105.

It is not an unprimeable number, because it can be changed into a prime (2120123123) 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, 40771573 + ... + 40771624.

Almost surely, 2^2120123122 is an apocalyptic number.

2120123122 is a deficient number, since it is larger than the sum of its proper divisors (1304691194).

2120123122 is a wasteful number, since it uses less digits than its factorization.

2120123122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81543212.

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

The square root of 2120123122 is about 46044.7947329554. The cubic root of 2120123122 is about 1284.6565261649.

Adding to 2120123122 its reverse (2213210212), we get a palindrome (4333333334).

The spelling of 2120123122 in words is "two billion, one hundred twenty million, one hundred twenty-three thousand, one hundred twenty-two".