201210111001011 has 24 divisors (see below), whose sum is σ = 312081586693824. Its totient is φ = 114976985896080.

The previous prime is 201210111000971. The next prime is 201210111001037. The reversal of 201210111001011 is 110100111012102.

It is not a de Polignac number, because 201210111001011 - 2⁷ = 201210111000883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201210111021011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104653776 + ... + 106559058.

It is an arithmetic number, because the mean of its divisors is an integer number (13003399445576).

Almost surely, 2^{201210111001011} is an apocalyptic number.

201210111001011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

201210111001011 is a deficient number, since it is larger than the sum of its proper divisors (110871475692813).

201210111001011 is a wasteful number, since it uses less digits than its factorization.

201210111001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623711 (or 2623704 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 201210111001011 its reverse (110100111012102), we get a palindrome (311310222013113).

The spelling of 201210111001011 in words is "two hundred one trillion, two hundred ten billion, one hundred eleven million, one thousand, eleven".