201010212012111 has 4 divisors (see below), whose sum is σ = 268013616016152. Its totient is φ = 134006808008072.

The previous prime is 201010212012109. The next prime is 201010212012223. The reversal of 201010212012111 is 111210212010102.

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 201010212012111 - 2¹ = 201010212012109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201010212016111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33501702002016 + ... + 33501702002021.

It is an arithmetic number, because the mean of its divisors is an integer number (67003404004038).

Almost surely, 2^{201010212012111} is an apocalyptic number.

201010212012111 is a deficient number, since it is larger than the sum of its proper divisors (67003404004041).

201010212012111 is an equidigital number, since it uses as much as digits as its factorization.

201010212012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67003404004040.

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

Adding to 201010212012111 its reverse (111210212010102), we get a palindrome (312220424022213).

The spelling of 201010212012111 in words is "two hundred one trillion, ten billion, two hundred twelve million, twelve thousand, one hundred eleven".