12021101101 has 2 divisors, whose sum is σ = 12021101102. Its totient is φ = 12021101100.

The previous prime is 12021101023. The next prime is 12021101153. The reversal of 12021101101 is 10110112021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12019833225 + 1267876 = 109635^2 + 1126^2 .

It is a cyclic number.

It is not a de Polignac number, because 12021101101 - 2¹⁷ = 12020970029 is a prime.

It is a super-3 number, since 3×12021101101³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021105101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010550550 + 6010550551.

It is an arithmetic number, because the mean of its divisors is an integer number (6010550551).

Almost surely, 2^12021101101 is an apocalyptic number.

It is an amenable number.

12021101101 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021101101 is an equidigital number, since it uses as much as digits as its factorization.

12021101101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12021101101 its reverse (10110112021), we get a palindrome (22131213122).

It can be divided in two parts, 12021 and 101101, that multiplied together give a palindrome (1215335121).

The spelling of 12021101101 in words is "twelve billion, twenty-one million, one hundred one thousand, one hundred one".