11121122110212 has 18 divisors (see below), whose sum is σ = 28111725334238. Its totient is φ = 3707040703392.

The previous prime is 11121122110211. The next prime is 11121122110271. The reversal of 11121122110212 is 21201122112111.

It is a happy number.

11121122110212 is a `hidden beast` number, since 1 + 11 + 211 + 221 + 10 + 212 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8356863398976 + 2764258711236 = 2890824^2 + 1662606^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is not an unprimeable number, because it can be changed into a prime (11121122110211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154460029273 + ... + 154460029344.

Almost surely, 2^{11121122110212} is an apocalyptic number.

11121122110212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11121122110212 is an abundant number, since it is smaller than the sum of its proper divisors (16990603224026).

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

11121122110212 is a wasteful number, since it uses less digits than its factorization.

11121122110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308920058627 (or 308920058622 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 11121122110212 its reverse (21201122112111), we get a palindrome (32322244222323).

The spelling of 11121122110212 in words is "eleven trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred ten thousand, two hundred twelve".