11221122120112 has 20 divisors (see below), whose sum is σ = 21741213303400. Its totient is φ = 5610486428928.

The previous prime is 11221122120073. The next prime is 11221122120119. The reversal of 11221122120112 is 21102122112211.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11221122120112.

It is not an unprimeable number, because it can be changed into a prime (11221122120119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3413862 + ... + 5839237.

It is an arithmetic number, because the mean of its divisors is an integer number (1087060665170).

Almost surely, 2^{11221122120112} is an apocalyptic number.

It is an amenable number.

11221122120112 is a deficient number, since it is larger than the sum of its proper divisors (10520091183288).

11221122120112 is an equidigital number, since it uses as much as digits as its factorization.

11221122120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9328900 (or 9328894 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11221122120112 its reverse (21102122112211), we get a palindrome (32323244232323).

The spelling of 11221122120112 in words is "eleven trillion, two hundred twenty-one billion, one hundred twenty-two million, one hundred twenty thousand, one hundred twelve".