11213211332009 has 2 divisors, whose sum is σ = 11213211332010. Its totient is φ = 11213211332008.

The previous prime is 11213211331981. The next prime is 11213211332021. The reversal of 11213211332009 is 90023311231211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10335279811609 + 877931520400 = 3214853^2 + 936980^2 .

It is a cyclic number.

It is not a de Polignac number, because 11213211332009 - 2¹⁶ = 11213211266473 is a prime.

It is a super-2 number, since 2×11213211332009² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11213211332069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606605666004 + 5606605666005.

It is an arithmetic number, because the mean of its divisors is an integer number (5606605666005).

Almost surely, 2^{11213211332009} is an apocalyptic number.

It is an amenable number.

11213211332009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11213211332009 is an equidigital number, since it uses as much as digits as its factorization.

11213211332009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 11213211332009 in words is "eleven trillion, two hundred thirteen billion, two hundred eleven million, three hundred thirty-two thousand, nine".