12101022211 has 4 divisors (see below), whose sum is σ = 12103355872. Its totient is φ = 12098688552.

The previous prime is 12101022209. The next prime is 12101022217. The reversal of 12101022211 is 11222010121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11222010121 = 7 ⋅1603144303.

It is a cyclic number.

It is not a de Polignac number, because 12101022211 - 2¹ = 12101022209 is a prime.

It is a super-2 number, since 2×12101022211² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12101022191 and 12101022200.

It is not an unprimeable number, because it can be changed into a prime (12101022217) 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, 1159035 + ... + 1169428.

It is an arithmetic number, because the mean of its divisors is an integer number (3025838968).

Almost surely, 2^12101022211 is an apocalyptic number.

12101022211 is a deficient number, since it is larger than the sum of its proper divisors (2333661).

12101022211 is an equidigital number, since it uses as much as digits as its factorization.

12101022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333660.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12101022211 its reverse (11222010121), we get a palindrome (23323032332).

The spelling of 12101022211 in words is "twelve billion, one hundred one million, twenty-two thousand, two hundred eleven".