211111012110101 has 8 divisors (see below), whose sum is σ = 211146117396480. Its totient is φ = 211075907933968.

The previous prime is 211111012110043. The next prime is 211111012110157. The reversal of 211111012110101 is 101011210111112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211111012110101 - 2¹⁰ = 211111012109077 is a prime.

It is a super-2 number, since 2×211111012110101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211111012112101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436473140 + ... + 436956546.

It is an arithmetic number, because the mean of its divisors is an integer number (26393264674560).

Almost surely, 2^{211111012110101} is an apocalyptic number.

It is an amenable number.

211111012110101 is a deficient number, since it is larger than the sum of its proper divisors (35105286379).

211111012110101 is an equidigital number, since it uses as much as digits as its factorization.

211111012110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555123.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 211111012110101 its reverse (101011210111112), we get a palindrome (312122222221213).

The spelling of 211111012110101 in words is "two hundred eleven trillion, one hundred eleven billion, twelve million, one hundred ten thousand, one hundred one".