20012211011011 has 8 divisors (see below), whose sum is σ = 20702800000800. Its totient is φ = 19321656204480.

The previous prime is 20012211010997. The next prime is 20012211011029. The reversal of 20012211011011 is 11011011221002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20012211011011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20012211010982 and 20012211011000.

It is not an unprimeable number, because it can be changed into a prime (20012211018011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7351906 + ... + 9699223.

It is an arithmetic number, because the mean of its divisors is an integer number (2587850000100).

Almost surely, 2^{20012211011011} is an apocalyptic number.

20012211011011 is a deficient number, since it is larger than the sum of its proper divisors (690588989789).

20012211011011 is a wasteful number, since it uses less digits than its factorization.

20012211011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17091629.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20012211011011 its reverse (11011011221002), we get a palindrome (31023222232013).

The spelling of 20012211011011 in words is "twenty trillion, twelve billion, two hundred eleven million, eleven thousand, eleven".