20112102120000 has 560 divisors, whose sum is σ = 73140417624384. Its totient is φ = 4875622400000.

The previous prime is 20112102119903. The next prime is 20112102120023. The reversal of 20112102120000 is 2120121102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 159657040 + ... + 159782960.

Almost surely, 2^{20112102120000} is an apocalyptic number.

20112102120000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20112102120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36570208812192).

20112102120000 is an abundant number, since it is smaller than the sum of its proper divisors (53028315504384).

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

20112102120000 is an equidigital number, since it uses as much as digits as its factorization.

20112102120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125989 (or 125942 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20112102120000 its reverse (2120121102), we get a palindrome (20114222241102).

The spelling of 20112102120000 in words is "twenty trillion, one hundred twelve billion, one hundred two million, one hundred twenty thousand".