20012011011200 has 384 divisors, whose sum is σ = 53931215681280. Its totient is φ = 7293104455680.

The previous prime is 20012011011143. The next prime is 20012011011277. The reversal of 20012011011200 is 211011021002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4913332364 + ... + 4913336436.

It is an arithmetic number, because the mean of its divisors is an integer number (140445874170).

Almost surely, 2^{20012011011200} is an apocalyptic number.

20012011011200 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 20012011011200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26965607840640).

20012011011200 is an abundant number, since it is smaller than the sum of its proper divisors (33919204670080).

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

20012011011200 is a wasteful number, since it uses less digits than its factorization.

20012011011200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5616 (or 5599 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20012011011200 its reverse (211011021002), we get a palindrome (20223022032202).

The spelling of 20012011011200 in words is "twenty trillion, twelve billion, eleven million, eleven thousand, two hundred".