22121210333 has 8 divisors (see below), whose sum is σ = 22155258840. Its totient is φ = 22087183680.

The previous prime is 22121210329. The next prime is 22121210357. The reversal of 22121210333 is 33301212122.

It can be written as a sum of positive squares in 4 ways, for example, as 15351705604 + 6769504729 = 123902^2 + 82277^2 .

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 22121210333 - 2² = 22121210329 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 (22121210383) 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, 4260503 + ... + 4265691.

It is an arithmetic number, because the mean of its divisors is an integer number (2769407355).

Almost surely, 2^22121210333 is an apocalyptic number.

It is an amenable number.

22121210333 is a deficient number, since it is larger than the sum of its proper divisors (34048507).

22121210333 is an equidigital number, since it uses as much as digits as its factorization.

22121210333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10927.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 22121210333 its reverse (33301212122), we get a palindrome (55422422455).

The spelling of 22121210333 in words is "twenty-two billion, one hundred twenty-one million, two hundred ten thousand, three hundred thirty-three".