11212221101 has 8 divisors (see below), whose sum is σ = 11262672000. Its totient is φ = 11161800160.

The previous prime is 11212221047. The next prime is 11212221107. The reversal of 11212221101 is 10112221211.

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 11212221101 - 2³⁰ = 10138479277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212221107) 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, 1106066 + ... + 1116156.

It is an arithmetic number, because the mean of its divisors is an integer number (1407834000).

Almost surely, 2^11212221101 is an apocalyptic number.

It is an amenable number.

11212221101 is a deficient number, since it is larger than the sum of its proper divisors (50450899).

11212221101 is a wasteful number, since it uses less digits than its factorization.

11212221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14979.

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

Adding to 11212221101 its reverse (10112221211), we get a palindrome (21324442312).

It can be divided in two parts, 1121 and 2221101, that added together give a palindrome (2222222).

The spelling of 11212221101 in words is "eleven billion, two hundred twelve million, two hundred twenty-one thousand, one hundred one".