1222263 has 32 divisors (see below), whose sum is σ = 2150400. Its totient is φ = 671328.

The previous prime is 1222259. The next prime is 1222267. The reversal of 1222263 is 3622221.

It is an interprime number because it is at equal distance from previous prime (1222259) and next prime (1222267).

It is not a de Polignac number, because 1222263 - 2² = 1222259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222267) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5370 + ... + 5592.

It is an arithmetic number, because the mean of its divisors is an integer number (67200).

2^1222263 is an apocalyptic number.

1222263 is a deficient number, since it is larger than the sum of its proper divisors (928137).

1222263 is a wasteful number, since it uses less digits than its factorization.

1222263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 262 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 1222263 is about 1105.5600390752. The cubic root of 1222263 is about 106.9190000423.

Adding to 1222263 its reverse (3622221), we get a palindrome (4844484).

It can be divided in two parts, 1222 and 263, that added together give a triangular number (1485 = T₅₄).

The spelling of 1222263 in words is "one million, two hundred twenty-two thousand, two hundred sixty-three".