2122115122 has 4 divisors (see below), whose sum is σ = 3183172686. Its totient is φ = 1061057560.

The previous prime is 2122115119. The next prime is 2122115123. The reversal of 2122115122 is 2215112212.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1975002481 + 147112641 = 44441^2 + 12129^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2122115122.

It is not an unprimeable number, because it can be changed into a prime (2122115123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530528779 + ... + 530528782.

Almost surely, 2^2122115122 is an apocalyptic number.

2122115122 is a deficient number, since it is larger than the sum of its proper divisors (1061057564).

2122115122 is a wasteful number, since it uses less digits than its factorization.

2122115122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061057563.

The product of its digits is 160, while the sum is 19.

The square root of 2122115122 is about 46066.4207639361. The cubic root of 2122115122 is about 1285.0587409748.

Adding to 2122115122 its reverse (2215112212), we get a palindrome (4337227334).

The spelling of 2122115122 in words is "two billion, one hundred twenty-two million, one hundred fifteen thousand, one hundred twenty-two".