222121332133 has 4 divisors (see below), whose sum is σ = 222127857900. Its totient is φ = 222114806368.

The previous prime is 222121332131. The next prime is 222121332179. The reversal of 222121332133 is 331233121222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 156576115809 + 65545216324 = 395697^2 + 256018^2 .

It is a cyclic number.

It is not a de Polignac number, because 222121332133 - 2¹ = 222121332131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222121332098 and 222121332107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222121332131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3211558 + ... + 3279991.

It is an arithmetic number, because the mean of its divisors is an integer number (55531964475).

Almost surely, 2^222121332133 is an apocalyptic number.

It is an amenable number.

222121332133 is a deficient number, since it is larger than the sum of its proper divisors (6525767).

222121332133 is an equidigital number, since it uses as much as digits as its factorization.

222121332133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6525766.

The product of its digits is 2592, while the sum is 25.

Adding to 222121332133 its reverse (331233121222), we get a palindrome (553354453355).

The spelling of 222121332133 in words is "two hundred twenty-two billion, one hundred twenty-one million, three hundred thirty-two thousand, one hundred thirty-three".