20011112119950 has 192 divisors, whose sum is σ = 60059158967808. Its totient is φ = 4304506982400.

The previous prime is 20011112119913. The next prime is 20011112119951. The reversal of 20011112119950 is 5991121111002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011112119951) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 214349682 + ... + 214443018.

It is an arithmetic number, because the mean of its divisors is an integer number (312808119624).

Almost surely, 2^{20011112119950} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20011112119950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30029579483904).

20011112119950 is an abundant number, since it is smaller than the sum of its proper divisors (40048046847858).

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

20011112119950 is a wasteful number, since it uses less digits than its factorization.

20011112119950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105387 (or 105382 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 33.

The spelling of 20011112119950 in words is "twenty trillion, eleven billion, one hundred twelve million, one hundred nineteen thousand, nine hundred fifty".