201102012201111 has 64 divisors (see below), whose sum is σ = 311574934056960. Its totient is φ = 113005686816000.

The previous prime is 201102012201107. The next prime is 201102012201127. The reversal of 201102012201111 is 111102210201102.

It is a happy number.

It is not a de Polignac number, because 201102012201111 - 2² = 201102012201107 is a prime.

It is a super-2 number, since 2×201102012201111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201102012201011) 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 63 ways as a sum of consecutive naturals, for example, 320094456 + ... + 320722098.

It is an arithmetic number, because the mean of its divisors is an integer number (4868358344640).

Almost surely, 2^{201102012201111} is an apocalyptic number.

201102012201111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

201102012201111 is a deficient number, since it is larger than the sum of its proper divisors (110472921855849).

201102012201111 is a wasteful number, since it uses less digits than its factorization.

201102012201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628676.

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

Adding to 201102012201111 its reverse (111102210201102), we get a palindrome (312204222402213).

The spelling of 201102012201111 in words is "two hundred one trillion, one hundred two billion, twelve million, two hundred one thousand, one hundred eleven".