1222220110 has 16 divisors (see below), whose sum is σ = 2202509232. Its totient is φ = 488329600.

The previous prime is 1222220107. The next prime is 1222220113. The reversal of 1222220110 is 110222221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1222220107) and next prime (1222220113).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222220113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60556 + ... + 78175.

It is an arithmetic number, because the mean of its divisors is an integer number (137656827).

Almost surely, 2^1222220110 is an apocalyptic number.

1222220110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222220110 is a deficient number, since it is larger than the sum of its proper divisors (980289122).

1222220110 is a wasteful number, since it uses less digits than its factorization.

1222220110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139619.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1222220110 is about 34960.2647301190. The cubic root of 1222220110 is about 1069.1774940869.

Adding to 1222220110 its reverse (110222221), we get a palindrome (1332442331).

The spelling of 1222220110 in words is "one billion, two hundred twenty-two million, two hundred twenty thousand, one hundred ten".