1102120221012 has 48 divisors (see below), whose sum is σ = 2727298667520. Its totient is φ = 345202772992.

The previous prime is 1102120220989. The next prime is 1102120221019. The reversal of 1102120221012 is 2101220212011.

It is a junction number, because it is equal to n+sod(n) for n = 1102120220982 and 1102120221000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102120221019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4252212 + ... + 4503947.

It is an arithmetic number, because the mean of its divisors is an integer number (56818722240).

Almost surely, 2^{1102120221012} is an apocalyptic number.

1102120221012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1102120221012 is an abundant number, since it is smaller than the sum of its proper divisors (1625178446508).

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

1102120221012 is a wasteful number, since it uses less digits than its factorization.

1102120221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8756800 (or 8756798 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1102120221012 its reverse (2101220212011), we get a palindrome (3203340433023).

Subtracting 1102120221012 from its reverse (2101220212011), we obtain a palindrome (999099990999).

The spelling of 1102120221012 in words is "one trillion, one hundred two billion, one hundred twenty million, two hundred twenty-one thousand, twelve".