20122011133 has 8 divisors (see below), whose sum is σ = 23224273920. Its totient is φ = 17076670800.

The previous prime is 20122011109. The next prime is 20122011149. The reversal of 20122011133 is 33111022102.

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

It is not a de Polignac number, because 20122011133 - 2²¹ = 20119913981 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 (20122012133) 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, 14229853 + ... + 14231266.

It is an arithmetic number, because the mean of its divisors is an integer number (2903034240).

Almost surely, 2^20122011133 is an apocalyptic number.

It is an amenable number.

20122011133 is a deficient number, since it is larger than the sum of its proper divisors (3102262787).

20122011133 is a wasteful number, since it uses less digits than its factorization.

20122011133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28461227.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20122011133 its reverse (33111022102), we get a palindrome (53233033235).

The spelling of 20122011133 in words is "twenty billion, one hundred twenty-two million, eleven thousand, one hundred thirty-three".