201110212101 has 16 divisors (see below), whose sum is σ = 274014284544. Its totient is φ = 131143184064.

The previous prime is 201110212097. The next prime is 201110212139. The reversal of 201110212101 is 101212011102.

It is not a de Polignac number, because 201110212101 - 2² = 201110212097 is a prime.

It is a super-2 number, since 2×201110212101² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201110212001) 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, 182526 + ... + 659951.

It is an arithmetic number, because the mean of its divisors is an integer number (17125892784).

Almost surely, 2^201110212101 is an apocalyptic number.

It is an amenable number.

201110212101 is a deficient number, since it is larger than the sum of its proper divisors (72904072443).

201110212101 is a wasteful number, since it uses less digits than its factorization.

201110212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844220.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 201110212101 its reverse (101212011102), we get a palindrome (302322223203).

The spelling of 201110212101 in words is "two hundred one billion, one hundred ten million, two hundred twelve thousand, one hundred one".