1222212110 has 64 divisors (see below), whose sum is σ = 2688785280. Its totient is φ = 390451200.

The previous prime is 1222212097. The next prime is 1222212113. The reversal of 1222212110 is 112122221.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222212113) 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, 115106 + ... + 125274.

It is an arithmetic number, because the mean of its divisors is an integer number (42012270).

Almost surely, 2^1222212110 is an apocalyptic number.

1222212110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222212110 is an abundant number, since it is smaller than the sum of its proper divisors (1466573170).

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

1222212110 is a wasteful number, since it uses less digits than its factorization.

1222212110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10301.

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

The square root of 1222212110 is about 34960.1503143222. The cubic root of 1222212110 is about 1069.1751613268.

Adding to 1222212110 its reverse (112122221), we get a palindrome (1334334331).

The spelling of 1222212110 in words is "one billion, two hundred twenty-two million, two hundred twelve thousand, one hundred ten".