2051122 has 4 divisors (see below), whose sum is σ = 3076686. Its totient is φ = 1025560.

The previous prime is 2051113. The next prime is 2051123. The reversal of 2051122 is 2211502.

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., 1929321 + 121801 = 1389^2 + 349^2 .

It is not an unprimeable number, because it can be changed into a prime (2051123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512779 + ... + 512782.

2^2051122 is an apocalyptic number.

2051122 is a deficient number, since it is larger than the sum of its proper divisors (1025564).

2051122 is a wasteful number, since it uses less digits than its factorization.

2051122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025563.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 2051122 is about 1432.1738721259. The cubic root of 2051122 is about 127.0565809016.

Adding to 2051122 its reverse (2211502), we get a palindrome (4262624).

The spelling of 2051122 in words is "two million, fifty-one thousand, one hundred twenty-two".