12101022211211 has 4 divisors (see below), whose sum is σ = 12236988753000. Its totient is φ = 11965055669424.

The previous prime is 12101022211177. The next prime is 12101022211259. The reversal of 12101022211211 is 11211222010121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12101022211211 - 2¹⁰ = 12101022210187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12101022211211.

It is not an unprimeable number, because it can be changed into a prime (12101022241211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67983270761 + ... + 67983270938.

It is an arithmetic number, because the mean of its divisors is an integer number (3059247188250).

Almost surely, 2^{12101022211211} is an apocalyptic number.

12101022211211 is a deficient number, since it is larger than the sum of its proper divisors (135966541789).

12101022211211 is an equidigital number, since it uses as much as digits as its factorization.

12101022211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135966541788.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12101022211211 its reverse (11211222010121), we get a palindrome (23312244221332).

The spelling of 12101022211211 in words is "twelve trillion, one hundred one billion, twenty-two million, two hundred eleven thousand, two hundred eleven".