2121122 has 8 divisors (see below), whose sum is σ = 3349200. Its totient is φ = 1004724.

The previous prime is 2121121. The next prime is 2121127. The reversal of 2121122 is 2211212.

It is a happy number.

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2121121) 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, 27872 + ... + 27947.

It is an arithmetic number, because the mean of its divisors is an integer number (418650).

2^2121122 is an apocalyptic number.

2121122 is a deficient number, since it is larger than the sum of its proper divisors (1228078).

2121122 is a wasteful number, since it uses less digits than its factorization.

2121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55840.

The product of its digits is 16, while the sum is 11.

The square root of 2121122 is about 1456.4072232724. The cubic root of 2121122 is about 128.4858246159.

Adding to 2121122 its reverse (2211212), we get a palindrome (4332334).

The spelling of 2121122 in words is "two million, one hundred twenty-one thousand, one hundred twenty-two".