1122220210212 has 72 divisors (see below), whose sum is σ = 2938450919040. Its totient is φ = 360693144000.

The previous prime is 1122220210207. The next prime is 1122220210217. The reversal of 1122220210212 is 2120120222211.

It is a happy number.

1122220210212 is a `hidden beast` number, since 1 + 1 + 22 + 220 + 210 + 212 = 666.

It is an interprime number because it is at equal distance from previous prime (1122220210207) and next prime (1122220210217).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1122220210217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68383 + ... + 1499705.

It is an arithmetic number, because the mean of its divisors is an integer number (40811818320).

Almost surely, 2^{1122220210212} is an apocalyptic number.

1122220210212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122220210212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1469225459520).

1122220210212 is an abundant number, since it is smaller than the sum of its proper divisors (1816230708828).

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

1122220210212 is a wasteful number, since it uses less digits than its factorization.

1122220210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432113 (or 1432108 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1122220210212 its reverse (2120120222211), we get a palindrome (3242340432423).

The spelling of 1122220210212 in words is "one trillion, one hundred twenty-two billion, two hundred twenty million, two hundred ten thousand, two hundred twelve".