22121131133 has 8 divisors (see below), whose sum is σ = 22722195000. Its totient is φ = 21520235520.

The previous prime is 22121131093. The next prime is 22121131147. The reversal of 22121131133 is 33113112122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6917747929 + 15203383204 = 83173^2 + 123302^2 .

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 22121131133 - 2¹⁴ = 22121114749 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 (22121131733) 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, 251993 + ... + 328241.

It is an arithmetic number, because the mean of its divisors is an integer number (2840274375).

Almost surely, 2^22121131133 is an apocalyptic number.

It is an amenable number.

22121131133 is a deficient number, since it is larger than the sum of its proper divisors (601063867).

22121131133 is an equidigital number, since it uses as much as digits as its factorization.

22121131133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84127.

The product of its digits is 216, while the sum is 20.

Adding to 22121131133 its reverse (33113112122), we get a palindrome (55234243255).

The spelling of 22121131133 in words is "twenty-two billion, one hundred twenty-one million, one hundred thirty-one thousand, one hundred thirty-three".