12211121011101 has 8 divisors (see below), whose sum is σ = 16281513994464. Its totient is φ = 8140737684240.

The previous prime is 12211121011003. The next prime is 12211121011123. The reversal of 12211121011101 is 10111012111221.

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

It is not a de Polignac number, because 12211121011101 - 2¹³ = 12211121002909 is a prime.

It is a super-2 number, since 2×12211121011101² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211121019101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1395175 + ... + 5135051.

It is an arithmetic number, because the mean of its divisors is an integer number (2035189249308).

Almost surely, 2^{12211121011101} is an apocalyptic number.

It is an amenable number.

12211121011101 is a deficient number, since it is larger than the sum of its proper divisors (4070392983363).

12211121011101 is a wasteful number, since it uses less digits than its factorization.

12211121011101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4828251.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 12211121011101 its reverse (10111012111221), we get a palindrome (22322133122322).

The spelling of 12211121011101 in words is "twelve trillion, two hundred eleven billion, one hundred twenty-one million, eleven thousand, one hundred one".