20110211122012 has 48 divisors (see below), whose sum is σ = 38410869853440. Its totient is φ = 9136566115200.

The previous prime is 20110211121989. The next prime is 20110211122019. The reversal of 20110211122012 is 21022111201102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110211122019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 985446313 + ... + 985466719.

It is an arithmetic number, because the mean of its divisors is an integer number (800226455280).

Almost surely, 2^{20110211122012} is an apocalyptic number.

20110211122012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20110211122012 is a deficient number, since it is larger than the sum of its proper divisors (18300658731428).

20110211122012 is a wasteful number, since it uses less digits than its factorization.

20110211122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30202 (or 30200 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20110211122012 its reverse (21022111201102), we get a palindrome (41132322323114).

The spelling of 20110211122012 in words is "twenty trillion, one hundred ten billion, two hundred eleven million, one hundred twenty-two thousand, twelve".