1222705 has 24 divisors (see below), whose sum is σ = 1685376. Its totient is φ = 850080.

The previous prime is 1222693. The next prime is 1222717. The reversal of 1222705 is 5072221.

It is an interprime number because it is at equal distance from previous prime (1222693) and next prime (1222717).

It is not a de Polignac number, because 1222705 - 2¹¹ = 1220657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25992 + ... + 26038.

It is an arithmetic number, because the mean of its divisors is an integer number (70224).

2^1222705 is an apocalyptic number.

It is an amenable number.

1222705 is a deficient number, since it is larger than the sum of its proper divisors (462671).

1222705 is a wasteful number, since it uses less digits than its factorization.

1222705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 1222705 is about 1105.7599196932. The cubic root of 1222705 is about 106.9318866585.

Adding to 1222705 its reverse (5072221), we get a palindrome (6294926).

The spelling of 1222705 in words is "one million, two hundred twenty-two thousand, seven hundred five".