201111022201011 has 16 divisors (see below), whose sum is σ = 289579187761920. Its totient is φ = 123415891909920.

The previous prime is 201111022201009. The next prime is 201111022201039. The reversal of 201111022201011 is 110102220111102.

It is a happy number.

It is not a de Polignac number, because 201111022201011 - 2¹ = 201111022201009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201111022201711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7182009505 + ... + 7182037506.

It is an arithmetic number, because the mean of its divisors is an integer number (18098699235120).

Almost surely, 2^{201111022201011} is an apocalyptic number.

201111022201011 is a deficient number, since it is larger than the sum of its proper divisors (88468165560909).

201111022201011 is a wasteful number, since it uses less digits than its factorization.

201111022201011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14364047386.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201111022201011 its reverse (110102220111102), we get a palindrome (311213242312113).

The spelling of 201111022201011 in words is "two hundred one trillion, one hundred eleven billion, twenty-two million, two hundred one thousand, eleven".