1102221212112 has 160 divisors (see below), whose sum is σ = 3188145945600. Its totient is φ = 364580535168.

The previous prime is 1102221212111. The next prime is 1102221212119. The reversal of 1102221212112 is 2112121222011.

1102221212112 is a `hidden beast` number, since 110 + 222 + 121 + 211 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102221212111) 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, 174316183 + ... + 174322505.

It is an arithmetic number, because the mean of its divisors is an integer number (19925912160).

Almost surely, 2^{1102221212112} is an apocalyptic number.

1102221212112 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 1102221212112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1594072972800).

1102221212112 is an abundant number, since it is smaller than the sum of its proper divisors (2085924733488).

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

1102221212112 is a wasteful number, since it uses less digits than its factorization.

1102221212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9382 (or 9370 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1102221212112 its reverse (2112121222011), we get a palindrome (3214342434123).

The spelling of 1102221212112 in words is "one trillion, one hundred two billion, two hundred twenty-one million, two hundred twelve thousand, one hundred twelve".