12221211101 has 8 divisors (see below), whose sum is σ = 13340052000. Its totient is φ = 11103673840.

The previous prime is 12221211091. The next prime is 12221211109. The reversal of 12221211101 is 10111212221.

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 12221211101 - 2²² = 12217016797 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221211109) 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, 306251 + ... + 343848.

It is an arithmetic number, because the mean of its divisors is an integer number (1667506500).

Almost surely, 2^12221211101 is an apocalyptic number.

12221211101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12221211101 is a deficient number, since it is larger than the sum of its proper divisors (1118840899).

12221211101 is a wasteful number, since it uses less digits than its factorization.

12221211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651819.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12221211101 its reverse (10111212221), we get a palindrome (22332423322).

It can be divided in two parts, 12221 and 211101, that added together give a palindrome (223322).

The spelling of 12221211101 in words is "twelve billion, two hundred twenty-one million, two hundred eleven thousand, one hundred one".