101211200202111 has 4 divisors (see below), whose sum is σ = 134948266936152. Its totient is φ = 67474133468072.

The previous prime is 101211200202017. The next prime is 101211200202247. The reversal of 101211200202111 is 111202002112101.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 101211200202111 - 2⁹ = 101211200201599 is a prime.

It is a super-3 number, since 3×101211200202111³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211200202611) 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, 16868533367016 + ... + 16868533367021.

It is an arithmetic number, because the mean of its divisors is an integer number (33737066734038).

Almost surely, 2^{101211200202111} is an apocalyptic number.

101211200202111 is a deficient number, since it is larger than the sum of its proper divisors (33737066734041).

101211200202111 is an equidigital number, since it uses as much as digits as its factorization.

101211200202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33737066734040.

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

Adding to 101211200202111 its reverse (111202002112101), we get a palindrome (212413202314212).

The spelling of 101211200202111 in words is "one hundred one trillion, two hundred eleven billion, two hundred million, two hundred two thousand, one hundred eleven".