12101210101211 has 8 divisors (see below), whose sum is σ = 15087222983424. Its totient is φ = 9429514364520.

The previous prime is 12101210101171. The next prime is 12101210101217. The reversal of 12101210101211 is 11210101210121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12101210101211 - 2¹⁸ = 12101209839067 is a prime.

It is a super-2 number, since 2×12101210101211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12101210101217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78579286295 + ... + 78579286448.

It is an arithmetic number, because the mean of its divisors is an integer number (1885902872928).

Almost surely, 2^{12101210101211} is an apocalyptic number.

12101210101211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12101210101211 is a deficient number, since it is larger than the sum of its proper divisors (2986012882213).

12101210101211 is a wasteful number, since it uses less digits than its factorization.

12101210101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157158572761.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12101210101211 its reverse (11210101210121), we get a palindrome (23311311311332).

The spelling of 12101210101211 in words is "twelve trillion, one hundred one billion, two hundred ten million, one hundred one thousand, two hundred eleven".