1222211210 has 32 divisors (see below), whose sum is σ = 2414385792. Its totient is φ = 441772480.

The previous prime is 1222211203. The next prime is 1222211213. The reversal of 1222211210 is 121122221.

It is not an unprimeable number, because it can be changed into a prime (1222211213) 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, 14897 + ... + 51636.

It is an arithmetic number, because the mean of its divisors is an integer number (75449556).

Almost surely, 2^1222211210 is an apocalyptic number.

1222211210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222211210 is a deficient number, since it is larger than the sum of its proper divisors (1192174582).

1222211210 is a wasteful number, since it uses less digits than its factorization.

1222211210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66718.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1222211210 is about 34960.1374425216. The cubic root of 1222211210 is about 1069.1748988907.

Adding to 1222211210 its reverse (121122221), we get a palindrome (1343333431).

It can be divided in two parts, 12222 and 11210, that added together give a palindrome (23432).

The spelling of 1222211210 in words is "one billion, two hundred twenty-two million, two hundred eleven thousand, two hundred ten".