2112122 has 4 divisors (see below), whose sum is σ = 3168186. Its totient is φ = 1056060.

The previous prime is 2112107. The next prime is 2112127. The reversal of 2112122 is 2212112.

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., 1934881 + 177241 = 1391^2 + 421^2 .

It is a super-2 number, since 2×2112122² = 8922118685768, which contains 22 as substring.

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 (2112127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528029 + ... + 528032.

2^2112122 is an apocalyptic number.

2112122 is a deficient number, since it is larger than the sum of its proper divisors (1056064).

2112122 is a wasteful number, since it uses less digits than its factorization.

2112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056063.

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

The square root of 2112122 is about 1453.3141436042. The cubic root of 2112122 is about 128.3038436017.

Adding to 2112122 its reverse (2212112), we get a palindrome (4324234).

The spelling of 2112122 in words is "two million, one hundred twelve thousand, one hundred twenty-two".