11221871033 has 2 divisors, whose sum is σ = 11221871034. Its totient is φ = 11221871032.

The previous prime is 11221871027. The next prime is 11221871047. The reversal of 11221871033 is 33017812211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10248930169 + 972940864 = 101237^2 + 31192^2 .

It is a cyclic number.

It is not a de Polignac number, because 11221871033 - 2²⁶ = 11154762169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11221870987 and 11221871005.

It is not a weakly prime, because it can be changed into another prime (11221871083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610935516 + 5610935517.

It is an arithmetic number, because the mean of its divisors is an integer number (5610935517).

Almost surely, 2^11221871033 is an apocalyptic number.

It is an amenable number.

11221871033 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221871033 is an equidigital number, since it uses as much as digits as its factorization.

11221871033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The spelling of 11221871033 in words is "eleven billion, two hundred twenty-one million, eight hundred seventy-one thousand, thirty-three".