211122012121112 has 32 divisors (see below), whose sum is σ = 397332017133120. Its totient is φ = 105166939019520.

The previous prime is 211122012121103. The next prime is 211122012121117. The reversal of 211122012121112 is 211121210221112.

It is a happy number.

It is a super-2 number, since 2×211122012121112² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211122012121117) 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, 4638113 + ... + 21065519.

It is an arithmetic number, because the mean of its divisors is an integer number (12416625535410).

Almost surely, 2^{211122012121112} is an apocalyptic number.

It is an amenable number.

211122012121112 is a deficient number, since it is larger than the sum of its proper divisors (186210005012008).

211122012121112 is a wasteful number, since it uses less digits than its factorization.

211122012121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16433411 (or 16433407 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 211122012121112 its reverse (211121210221112), we get a palindrome (422243222342224).

The spelling of 211122012121112 in words is "two hundred eleven trillion, one hundred twenty-two billion, twelve million, one hundred twenty-one thousand, one hundred twelve".