12011211211021 has 32 divisors (see below), whose sum is σ = 13385494844928. Its totient is φ = 10686373079040.

The previous prime is 12011211211003. The next prime is 12011211211037.

12011211211021 is nontrivially palindromic in base 10.

12011211211021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12011211211021 - 2⁷ = 12011211210893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12011211210986 and 12011211211004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011211211421) 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, 262133305 + ... + 262179121.

It is an arithmetic number, because the mean of its divisors is an integer number (418296713904).

Almost surely, 2^{12011211211021} is an apocalyptic number.

12011211211021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12011211211021 is a deficient number, since it is larger than the sum of its proper divisors (1374283633907).

12011211211021 is a wasteful number, since it uses less digits than its factorization.

12011211211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48421.

The product of its (nonzero) digits is 16, while the sum is 16.

It can be divided in two parts, 1201121 and 1211021, that added together give a palindrome (2412142).

The spelling of 12011211211021 in words is "twelve trillion, eleven billion, two hundred eleven million, two hundred eleven thousand, twenty-one".