22033312121 has 2 divisors, whose sum is σ = 22033312122. Its totient is φ = 22033312120.

The previous prime is 22033312109. The next prime is 22033312129. The reversal of 22033312121 is 12121333022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13458552121 + 8574760000 = 116011^2 + 92600^2 .

It is a cyclic number.

It is not a de Polignac number, because 22033312121 - 2³⁰ = 20959570297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22033312093 and 22033312102.

It is not a weakly prime, because it can be changed into another prime (22033312129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11016656060 + 11016656061.

It is an arithmetic number, because the mean of its divisors is an integer number (11016656061).

Almost surely, 2^22033312121 is an apocalyptic number.

It is an amenable number.

22033312121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22033312121 is an equidigital number, since it uses as much as digits as its factorization.

22033312121 is an evil number, because the sum of its binary digits is even.

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

Adding to 22033312121 its reverse (12121333022), we get a palindrome (34154645143).

The spelling of 22033312121 in words is "twenty-two billion, thirty-three million, three hundred twelve thousand, one hundred twenty-one".