20112122002012 has 192 divisors, whose sum is σ = 39664537436160. Its totient is φ = 8879026464000.

The previous prime is 20112122002009. The next prime is 20112122002013. The reversal of 20112122002012 is 21020022121102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112122002013) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9112877013 + ... + 9112879219.

It is an arithmetic number, because the mean of its divisors is an integer number (206586132480).

Almost surely, 2^{20112122002012} is an apocalyptic number.

It is an amenable number.

20112122002012 is a deficient number, since it is larger than the sum of its proper divisors (19552415434148).

20112122002012 is a wasteful number, since it uses less digits than its factorization.

20112122002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152 (or 3150 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20112122002012 its reverse (21020022121102), we get a palindrome (41132144123114).

The spelling of 20112122002012 in words is "twenty trillion, one hundred twelve billion, one hundred twenty-two million, two thousand, twelve".