20122111101 has 8 divisors (see below), whose sum is σ = 28241559520. Its totient is φ = 12708701712.

The previous prime is 20122110997. The next prime is 20122111127. The reversal of 20122111101 is 10111122102.

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

It is not a de Polignac number, because 20122111101 - 2¹¹ = 20122109053 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 (20122111151) 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, 176509690 + ... + 176509803.

It is an arithmetic number, because the mean of its divisors is an integer number (3530194940).

Almost surely, 2^20122111101 is an apocalyptic number.

It is an amenable number.

20122111101 is a deficient number, since it is larger than the sum of its proper divisors (8119448419).

20122111101 is a wasteful number, since it uses less digits than its factorization.

20122111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353019515.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20122111101 its reverse (10111122102), we get a palindrome (30233233203).

The spelling of 20122111101 in words is "twenty billion, one hundred twenty-two million, one hundred eleven thousand, one hundred one".