20101222120011 has 8 divisors (see below), whose sum is σ = 27307320616080. Its totient is φ = 13147969185312.

The previous prime is 20101222120009. The next prime is 20101222120039. The reversal of 20101222120011 is 11002122210102.

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

It is not a de Polignac number, because 20101222120011 - 2¹ = 20101222120009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20101222120051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63211390156 + ... + 63211390473.

It is an arithmetic number, because the mean of its divisors is an integer number (3413415077010).

Almost surely, 2^{20101222120011} is an apocalyptic number.

20101222120011 is a deficient number, since it is larger than the sum of its proper divisors (7206098496069).

20101222120011 is a wasteful number, since it uses less digits than its factorization.

20101222120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126422780685.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20101222120011 its reverse (11002122210102), we get a palindrome (31103344330113).

Subtracting from 20101222120011 its reverse (11002122210102), we obtain a palindrome (9099099909909).

The spelling of 20101222120011 in words is "twenty trillion, one hundred one billion, two hundred twenty-two million, one hundred twenty thousand, eleven".