1222210 has 32 divisors (see below), whose sum is σ = 2467584. Its totient is φ = 432000.

The previous prime is 1222187. The next prime is 1222219. The reversal of 1222210 is 122221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222219) 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, 4375 + ... + 4645.

It is an arithmetic number, because the mean of its divisors is an integer number (77112).

2^1222210 is an apocalyptic number.

1222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222210 is an abundant number, since it is smaller than the sum of its proper divisors (1245374).

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

1222210 is a wasteful number, since it uses less digits than its factorization.

1222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1222210 is about 1105.5360690633. The cubic root of 1222210 is about 106.9174546060.

1222210 divided by its sum of digits (10) gives a palindrome (122221).

Adding to 1222210 its reverse (122221), we get a palindrome (1344431).

It can be divided in two parts, 122 and 2210, that added together give a palindrome (2332).

The spelling of 1222210 in words is "one million, two hundred twenty-two thousand, two hundred ten".