1229122 has 4 divisors (see below), whose sum is σ = 1843686. Its totient is φ = 614560.

The previous prime is 1229113. The next prime is 1229131. The reversal of 1229122 is 2219221.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1229113) and next prime (1229131).

It can be written as a sum of positive squares in only one way, i.e., 978121 + 251001 = 989^2 + 501^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1229122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307279 + ... + 307282.

2^1229122 is an apocalyptic number.

1229122 is a deficient number, since it is larger than the sum of its proper divisors (614564).

1229122 is an equidigital number, since it uses as much as digits as its factorization.

1229122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614563.

The product of its digits is 144, while the sum is 19.

The square root of 1229122 is about 1108.6577470076. The cubic root of 1229122 is about 107.1186269864.

Subtracting 1229122 from its reverse (2219221), we obtain a palindrome (990099).

The spelling of 1229122 in words is "one million, two hundred twenty-nine thousand, one hundred twenty-two".