1102221111012 has 288 divisors, whose sum is σ = 3105321214464. Its totient is φ = 303193497600.

The previous prime is 1102221111011. The next prime is 1102221111127. The reversal of 1102221111012 is 2101111222011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1102221110982 and 1102221111000.

It is not an unprimeable number, because it can be changed into a prime (1102221111011) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 738258538 + ... + 738260030.

It is an arithmetic number, because the mean of its divisors is an integer number (10782365328).

Almost surely, 2^{1102221111012} is an apocalyptic number.

1102221111012 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 1102221111012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1552660607232).

1102221111012 is an abundant number, since it is smaller than the sum of its proper divisors (2003100103452).

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

1102221111012 is a wasteful number, since it uses less digits than its factorization.

1102221111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939 (or 1930 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1102221111012 its reverse (2101111222011), we get a palindrome (3203332333023).

The spelling of 1102221111012 in words is "one trillion, one hundred two billion, two hundred twenty-one million, one hundred eleven thousand, twelve".