201011021211011 has 4 divisors (see below), whose sum is σ = 219284750412024. Its totient is φ = 182737292010000.

The previous prime is 201011021211001. The next prime is 201011021211023. The reversal of 201011021211011 is 110112120110102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201011021211011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201011021211001) 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 3 ways as a sum of consecutive naturals, for example, 9136864600490 + ... + 9136864600511.

It is an arithmetic number, because the mean of its divisors is an integer number (54821187603006).

Almost surely, 2^{201011021211011} is an apocalyptic number.

201011021211011 is a deficient number, since it is larger than the sum of its proper divisors (18273729201013).

201011021211011 is a wasteful number, since it uses less digits than its factorization.

201011021211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18273729201012.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 201011021211011 its reverse (110112120110102), we get a palindrome (311123141321113).

The spelling of 201011021211011 in words is "two hundred one trillion, eleven billion, twenty-one million, two hundred eleven thousand, eleven".