11220202220881 has 2 divisors, whose sum is σ = 11220202220882. Its totient is φ = 11220202220880.

The previous prime is 11220202220879. The next prime is 11220202220989. The reversal of 11220202220881 is 18802220202211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11134127462656 + 86074758225 = 3336784^2 + 293385^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220202220881 - 2¹ = 11220202220879 is a prime.

It is a super-2 number, since 2×11220202220881² (a number of 27 digits) contains 22 as substring.

Together with 11220202220879, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11220202220281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610101110440 + 5610101110441.

It is an arithmetic number, because the mean of its divisors is an integer number (5610101110441).

Almost surely, 2^{11220202220881} is an apocalyptic number.

It is an amenable number.

11220202220881 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220202220881 is an equidigital number, since it uses as much as digits as its factorization.

11220202220881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4096, while the sum is 31.

The spelling of 11220202220881 in words is "eleven trillion, two hundred twenty billion, two hundred two million, two hundred twenty thousand, eight hundred eighty-one".