20012211011120 has 40 divisors (see below), whose sum is σ = 46644421574880. Its totient is φ = 7984922086400.

The previous prime is 20012211011087. The next prime is 20012211011129. The reversal of 20012211011120 is 2111011221002.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 20012211011095 and 20012211011104.

It is not an unprimeable number, because it can be changed into a prime (20012211011129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311878940 + ... + 311943099.

It is an arithmetic number, because the mean of its divisors is an integer number (1166110539372).

Almost surely, 2^{20012211011120} is an apocalyptic number.

20012211011120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012211011120 is an abundant number, since it is smaller than the sum of its proper divisors (26632210563760).

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

20012211011120 is a wasteful number, since it uses less digits than its factorization.

20012211011120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623822453 (or 623822447 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20012211011120 its reverse (2111011221002), we get a palindrome (22123222232122).

The spelling of 20012211011120 in words is "twenty trillion, twelve billion, two hundred eleven million, eleven thousand, one hundred twenty".