11121221122212 has 48 divisors (see below), whose sum is σ = 26202045484160. Its totient is φ = 3670999688448.

The previous prime is 11121221122201. The next prime is 11121221122267. The reversal of 11121221122212 is 21222112212111.

11121221122212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80232438 + ... + 80370930.

Almost surely, 2^{11121221122212} is an apocalyptic number.

11121221122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11121221122212 is an abundant number, since it is smaller than the sum of its proper divisors (15080824361948).

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

11121221122212 is a wasteful number, since it uses less digits than its factorization.

11121221122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203572 (or 203570 counting only the distinct ones).

The product of its digits is 128, while the sum is 21.

Adding to 11121221122212 its reverse (21222112212111), we get a palindrome (32343333334323).

The spelling of 11121221122212 in words is "eleven trillion, one hundred twenty-one billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred twelve".