12220011211081 has 2 divisors, whose sum is σ = 12220011211082. Its totient is φ = 12220011211080.

The previous prime is 12220011211043. The next prime is 12220011211091. The reversal of 12220011211081 is 18011211002221.

It is a happy number.

12220011211081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11639976651081 + 580034560000 = 3411741^2 + 761600^2 .

It is an emirp because it is prime and its reverse (18011211002221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12220011211081 - 2¹¹ = 12220011209033 is a prime.

It is a super-3 number, since 3×12220011211081³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (12220011211021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110005605540 + 6110005605541.

It is an arithmetic number, because the mean of its divisors is an integer number (6110005605541).

Almost surely, 2^{12220011211081} is an apocalyptic number.

It is an amenable number.

12220011211081 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220011211081 is an equidigital number, since it uses as much as digits as its factorization.

12220011211081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 22.

The spelling of 12220011211081 in words is "twelve trillion, two hundred twenty billion, eleven million, two hundred eleven thousand, eighty-one".