2123120422 has 4 divisors (see below), whose sum is σ = 3184680636. Its totient is φ = 1061560210.

The previous prime is 2123120387. The next prime is 2123120423. The reversal of 2123120422 is 2240213212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2123120422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123120423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530780104 + ... + 530780107.

It is an arithmetic number, because the mean of its divisors is an integer number (796170159).

Almost surely, 2^2123120422 is an apocalyptic number.

2123120422 is a deficient number, since it is larger than the sum of its proper divisors (1061560214).

2123120422 is a wasteful number, since it uses less digits than its factorization.

2123120422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061560213.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2123120422 is about 46077.3308905800. The cubic root of 2123120422 is about 1285.2616306288.

Adding to 2123120422 its reverse (2240213212), we get a palindrome (4363333634).

The spelling of 2123120422 in words is "two billion, one hundred twenty-three million, one hundred twenty thousand, four hundred twenty-two".