12122221101 has 8 divisors (see below), whose sum is σ = 16319883840. Its totient is φ = 8003019552.

The previous prime is 12122221063. The next prime is 12122221147. The reversal of 12122221101 is 10112222121.

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

It is not a de Polignac number, because 12122221101 - 2⁶ = 12122221037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122221151) 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, 19614936 + ... + 19615553.

It is an arithmetic number, because the mean of its divisors is an integer number (2039985480).

Almost surely, 2^12122221101 is an apocalyptic number.

It is an amenable number.

12122221101 is a deficient number, since it is larger than the sum of its proper divisors (4197662739).

12122221101 is a wasteful number, since it uses less digits than its factorization.

12122221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39230595.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12122221101 its reverse (10112222121), we get a palindrome (22234443222).

The spelling of 12122221101 in words is "twelve billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred one".