212011120122 has 32 divisors (see below), whose sum is σ = 426091561920. Its totient is φ = 70326305280.

The previous prime is 212011120099. The next prime is 212011120129. The reversal of 212011120122 is 221021110212.

It is a super-2 number, since 2×212011120122² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212011120129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 938004 + ... + 1141872.

It is an arithmetic number, because the mean of its divisors is an integer number (13315361310).

Almost surely, 2^212011120122 is an apocalyptic number.

212011120122 is an abundant number, since it is smaller than the sum of its proper divisors (214080441798).

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

212011120122 is a wasteful number, since it uses less digits than its factorization.

212011120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204718.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212011120122 its reverse (221021110212), we get a palindrome (433032230334).

The spelling of 212011120122 in words is "two hundred twelve billion, eleven million, one hundred twenty thousand, one hundred twenty-two".