20022111111012 has 192 divisors, whose sum is σ = 49211126415360. Its totient is φ = 6323800806400.

The previous prime is 20022111111011. The next prime is 20022111111031. The reversal of 20022111111012 is 21011111122002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20022111110982 and 20022111111000.

It is not an unprimeable number, because it can be changed into a prime (20022111111011) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 11553438898 + ... + 11553440630.

It is an arithmetic number, because the mean of its divisors is an integer number (256307950080).

Almost surely, 2^{20022111111012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20022111111012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24605563207680).

20022111111012 is an abundant number, since it is smaller than the sum of its proper divisors (29189015304348).

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

20022111111012 is a wasteful number, since it uses less digits than its factorization.

20022111111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834 (or 2832 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20022111111012 its reverse (21011111122002), we get a palindrome (41033222233014).

The spelling of 20022111111012 in words is "twenty trillion, twenty-two billion, one hundred eleven million, one hundred eleven thousand, twelve".