11226021533 has 2 divisors, whose sum is σ = 11226021534. Its totient is φ = 11226021532.

The previous prime is 11226021529. The next prime is 11226021571. The reversal of 11226021533 is 33512062211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10245893284 + 980128249 = 101222^2 + 31307^2 .

It is a cyclic number.

It is not a de Polignac number, because 11226021533 - 2² = 11226021529 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11226021733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5613010766 + 5613010767.

It is an arithmetic number, because the mean of its divisors is an integer number (5613010767).

Almost surely, 2^11226021533 is an apocalyptic number.

It is an amenable number.

11226021533 is a deficient number, since it is larger than the sum of its proper divisors (1).

11226021533 is an equidigital number, since it uses as much as digits as its factorization.

11226021533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 11226021533 its reverse (33512062211), we get a palindrome (44738083744).

The spelling of 11226021533 in words is "eleven billion, two hundred twenty-six million, twenty-one thousand, five hundred thirty-three".