20120120000022 has 192 divisors, whose sum is σ = 47836471947264. Its totient is φ = 5624117452800.

The previous prime is 20120119999981. The next prime is 20120120000039. The reversal of 20120120000022 is 22000002102102.

It is a junction number, because it is equal to n+sod(n) for n = 20120119999962 and 20120120000007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1741845147 + ... + 1741856697.

It is an arithmetic number, because the mean of its divisors is an integer number (249148291392).

Almost surely, 2^{20120120000022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20120120000022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23918235973632).

20120120000022 is an abundant number, since it is smaller than the sum of its proper divisors (27716351947242).

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

20120120000022 is a wasteful number, since it uses less digits than its factorization.

20120120000022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12363 (or 12356 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20120120000022 its reverse (22000002102102), we get a palindrome (42120122102124).

The spelling of 20120120000022 in words is "twenty trillion, one hundred twenty billion, one hundred twenty million, twenty-two", and thus it is an aban number.