1122251 has 8 divisors (see below), whose sum is σ = 1218000. Its totient is φ = 1027872.

The previous prime is 1122241. The next prime is 1122259. The reversal of 1122251 is 1522211.

1122251 = T₄₀₉ + T₄₁₀ + ... + T₄₂₁.

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

It is a cyclic number.

It is not a de Polignac number, because 1122251 - 2¹⁸ = 860107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2000 + ... + 2498.

It is an arithmetic number, because the mean of its divisors is an integer number (152250).

2^1122251 is an apocalyptic number.

1122251 is a deficient number, since it is larger than the sum of its proper divisors (95749).

1122251 is a wasteful number, since it uses less digits than its factorization.

1122251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685.

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

The square root of 1122251 is about 1059.3634881380. The cubic root of 1122251 is about 103.9194087185.

Subtracting from 1122251 its product of digits (40), we obtain a palindrome (1122211).

Adding to 1122251 its reverse (1522211), we get a palindrome (2644462).

The spelling of 1122251 in words is "one million, one hundred twenty-two thousand, two hundred fifty-one".