1222710 has 32 divisors (see below), whose sum is σ = 2993760. Its totient is φ = 319488.

The previous prime is 1222693. The next prime is 1222717. The reversal of 1222710 is 172221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1222710.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1206 + ... + 1974.

It is an arithmetic number, because the mean of its divisors is an integer number (93555).

2^1222710 is an apocalyptic number.

1222710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222710, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1496880).

1222710 is an abundant number, since it is smaller than the sum of its proper divisors (1771050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222710 is a wasteful number, since it uses less digits than its factorization.

1222710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 1222710 is about 1105.7621805795. The cubic root of 1222710 is about 106.9320324169.

Adding to 1222710 its reverse (172221), we get a palindrome (1394931).

It can be divided in two parts, 12 and 22710, that added together give a palindrome (22722).

The spelling of 1222710 in words is "one million, two hundred twenty-two thousand, seven hundred ten".