20122012011222 has 192 divisors, whose sum is σ = 51266551752000. Its totient is φ = 5636320419840.

The previous prime is 20122012011209. The next prime is 20122012011223. The reversal of 20122012011222 is 22211021022102.

It is a happy number.

20122012011222 is a `hidden beast` number, since 20 + 1 + 220 + 1 + 201 + 1 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 20122012011195 and 20122012011204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122012011223) 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 95 ways as a sum of consecutive naturals, for example, 44411128 + ... + 44861924.

It is an arithmetic number, because the mean of its divisors is an integer number (267013290375).

Almost surely, 2^{20122012011222} is an apocalyptic number.

20122012011222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20122012011222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25633275876000).

20122012011222 is an abundant number, since it is smaller than the sum of its proper divisors (31144539740778).

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

20122012011222 is a wasteful number, since it uses less digits than its factorization.

20122012011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451071 (or 451068 counting only the distinct ones).

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

Adding to 20122012011222 its reverse (22211021022102), we get a palindrome (42333033033324).

The spelling of 20122012011222 in words is "twenty trillion, one hundred twenty-two billion, twelve million, eleven thousand, two hundred twenty-two".