20124221133 has 8 divisors (see below), whose sum is σ = 26847401728. Its totient is φ = 13408593984.

The previous prime is 20124221119. The next prime is 20124221191. The reversal of 20124221133 is 33112242102.

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

It is not a de Polignac number, because 20124221133 - 2⁸ = 20124220877 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 (20124229133) 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, 1882141 + ... + 1892802.

It is an arithmetic number, because the mean of its divisors is an integer number (3355925216).

Almost surely, 2^20124221133 is an apocalyptic number.

It is an amenable number.

20124221133 is a deficient number, since it is larger than the sum of its proper divisors (6723180595).

20124221133 is a wasteful number, since it uses less digits than its factorization.

20124221133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3776723.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20124221133 its reverse (33112242102), we get a palindrome (53236463235).

The spelling of 20124221133 in words is "twenty billion, one hundred twenty-four million, two hundred twenty-one thousand, one hundred thirty-three".