1222397 has 4 divisors (see below), whose sum is σ = 1333536. Its totient is φ = 1111260.

The previous prime is 1222393. The next prime is 1222409. The reversal of 1222397 is 7932221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7932221 = 11 ⋅721111.

It is a cyclic number.

It is not a de Polignac number, because 1222397 - 2² = 1222393 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55553 + ... + 55574.

It is an arithmetic number, because the mean of its divisors is an integer number (333384).

2^1222397 is an apocalyptic number.

It is an amenable number.

1222397 is a deficient number, since it is larger than the sum of its proper divisors (111139).

1222397 is a wasteful number, since it uses less digits than its factorization.

1222397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111138.

The product of its digits is 1512, while the sum is 26.

The square root of 1222397 is about 1105.6206401836. The cubic root of 1222397 is about 106.9229071726.

The spelling of 1222397 in words is "one million, two hundred twenty-two thousand, three hundred ninety-seven".