211012120111101 has 24 divisors (see below), whose sum is σ = 304962039933984. Its totient is φ = 129668898820320.

The previous prime is 211012120111097. The next prime is 211012120111103. The reversal of 211012120111101 is 101111021210112.

It is not a de Polignac number, because 211012120111101 - 2² = 211012120111097 is a prime.

It is a super-2 number, since 2×211012120111101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211012120111103) 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, 2632937895 + ... + 2633018036.

It is an arithmetic number, because the mean of its divisors is an integer number (12706751663916).

Almost surely, 2^{211012120111101} is an apocalyptic number.

It is an amenable number.

211012120111101 is a deficient number, since it is larger than the sum of its proper divisors (93949919822883).

211012120111101 is a wasteful number, since it uses less digits than its factorization.

211012120111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5265956009 (or 5265955990 counting only the distinct ones).

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

Adding to 211012120111101 its reverse (101111021210112), we get a palindrome (312123141321213).

The spelling of 211012120111101 in words is "two hundred eleven trillion, twelve billion, one hundred twenty million, one hundred eleven thousand, one hundred one".