1251122 has 8 divisors (see below), whose sum is σ = 1881900. Its totient is φ = 623824.

The previous prime is 1251121. The next prime is 1251157. The reversal of 1251122 is 2211521.

It can be written as a sum of positive squares in 2 ways, for example, as 958441 + 292681 = 979^2 + 541^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1251097 and 1251106.

It is not an unprimeable number, because it can be changed into a prime (1251121) 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, 404 + ... + 1632.

2^1251122 is an apocalyptic number.

1251122 is a deficient number, since it is larger than the sum of its proper divisors (630778).

1251122 is a wasteful number, since it uses less digits than its factorization.

1251122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740.

The product of its digits is 40, while the sum is 14.

The square root of 1251122 is about 1118.5356498565. The cubic root of 1251122 is about 107.7539552060.

Adding to 1251122 its reverse (2211521), we get a palindrome (3462643).

The spelling of 1251122 in words is "one million, two hundred fifty-one thousand, one hundred twenty-two".