210111210111101 has 16 divisors (see below), whose sum is σ = 228537268283520. Its totient is φ = 192008923579200.

The previous prime is 210111210111079. The next prime is 210111210111151. The reversal of 210111210111101 is 101111012111012.

It is not a de Polignac number, because 210111210111101 - 2⁶ = 210111210111037 is a prime.

It is a super-2 number, since 2×210111210111101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210111210111151) 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, 4709360 + ... + 21033318.

It is an arithmetic number, because the mean of its divisors is an integer number (14283579267720).

Almost surely, 2^{210111210111101} is an apocalyptic number.

It is an amenable number.

210111210111101 is a deficient number, since it is larger than the sum of its proper divisors (18426058172419).

210111210111101 is a wasteful number, since it uses less digits than its factorization.

210111210111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16333876.

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

Adding to 210111210111101 its reverse (101111012111012), we get a palindrome (311222222222113).

The spelling of 210111210111101 in words is "two hundred ten trillion, one hundred eleven billion, two hundred ten million, one hundred eleven thousand, one hundred one".