20110222122012 has 96 divisors (see below), whose sum is σ = 57809812435200. Its totient is φ = 5994104932800.

The previous prime is 20110222121999. The next prime is 20110222122031. The reversal of 20110222122012 is 21022122201102.

It is a happy number.

20110222122012 is a `hidden beast` number, since 201 + 10 + 2 + 221 + 220 + 12 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138679962 + ... + 138824897.

It is an arithmetic number, because the mean of its divisors is an integer number (602185546200).

Almost surely, 2^{20110222122012} is an apocalyptic number.

20110222122012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20110222122012 is an abundant number, since it is smaller than the sum of its proper divisors (37699590313188).

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

20110222122012 is a wasteful number, since it uses less digits than its factorization.

20110222122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277504944 (or 277504936 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20110222122012 its reverse (21022122201102), we get a palindrome (41132344323114).

The spelling of 20110222122012 in words is "twenty trillion, one hundred ten billion, two hundred twenty-two million, one hundred twenty-two thousand, twelve".