21122000443331 has 2 divisors, whose sum is σ = 21122000443332. Its totient is φ = 21122000443330.

The previous prime is 21122000443319. The next prime is 21122000443363. The reversal of 21122000443331 is 13334400022112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21122000443331 - 2³⁴ = 21104820574147 is a prime.

It is a super-2 number, since 2×21122000443331² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21122000443331.

It is not a weakly prime, because it can be changed into another prime (21122000443231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10561000221665 + 10561000221666.

It is an arithmetic number, because the mean of its divisors is an integer number (10561000221666).

Almost surely, 2^{21122000443331} is an apocalyptic number.

21122000443331 is a deficient number, since it is larger than the sum of its proper divisors (1).

21122000443331 is an equidigital number, since it uses as much as digits as its factorization.

21122000443331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 21122000443331 its reverse (13334400022112), we get a palindrome (34456400465443).

The spelling of 21122000443331 in words is "twenty-one trillion, one hundred twenty-two billion, four hundred forty-three thousand, three hundred thirty-one".