211122011112 has 32 divisors (see below), whose sum is σ = 535035238080. Its totient is φ = 69409975680.

The previous prime is 211122011083. The next prime is 211122011117. The reversal of 211122011112 is 211110221112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 211122011091 and 211122011100.

It is not an unprimeable number, because it can be changed into a prime (211122011117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60249964 + ... + 60253467.

It is an arithmetic number, because the mean of its divisors is an integer number (16719851190).

Almost surely, 2^211122011112 is an apocalyptic number.

It is an amenable number.

211122011112 is an abundant number, since it is smaller than the sum of its proper divisors (323913226968).

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

211122011112 is a wasteful number, since it uses less digits than its factorization.

211122011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120503513 (or 120503509 counting only the distinct ones).

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

Adding to 211122011112 its reverse (211110221112), we get a palindrome (422232232224).

The spelling of 211122011112 in words is "two hundred eleven billion, one hundred twenty-two million, eleven thousand, one hundred twelve".