12101111012211 has 32 divisors (see below), whose sum is σ = 17704378137600. Its totient is φ = 7306093601664.

The previous prime is 12101111012209. The next prime is 12101111012273. The reversal of 12101111012211 is 11221011110121.

It is not a de Polignac number, because 12101111012211 - 2¹ = 12101111012209 is a prime.

It is a super-2 number, since 2×12101111012211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12101116012211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79642090 + ... + 79793888.

It is an arithmetic number, because the mean of its divisors is an integer number (553261816800).

Almost surely, 2^{12101111012211} is an apocalyptic number.

12101111012211 is a deficient number, since it is larger than the sum of its proper divisors (5603267125389).

12101111012211 is a wasteful number, since it uses less digits than its factorization.

12101111012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190435.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 12101111012211 its reverse (11221011110121), we get a palindrome (23322122122332).

The spelling of 12101111012211 in words is "twelve trillion, one hundred one billion, one hundred eleven million, twelve thousand, two hundred eleven".