220211011121281 has 2 divisors, whose sum is σ = 220211011121282. Its totient is φ = 220211011121280.

The previous prime is 220211011121083. The next prime is 220211011121317. The reversal of 220211011121281 is 182121110112022.

It is a happy number.

220211011121281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190340239068225 + 29870772053056 = 13796385^2 + 5465416^2 .

It is a cyclic number.

It is not a de Polignac number, because 220211011121281 - 2³⁷ = 220073572167809 is a prime.

It is a super-2 number, since 2×220211011121281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220211011101281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110105505560640 + 110105505560641.

It is an arithmetic number, because the mean of its divisors is an integer number (110105505560641).

Almost surely, 2^{220211011121281} is an apocalyptic number.

It is an amenable number.

220211011121281 is a deficient number, since it is larger than the sum of its proper divisors (1).

220211011121281 is an equidigital number, since it uses as much as digits as its factorization.

220211011121281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 25.

The spelling of 220211011121281 in words is "two hundred twenty trillion, two hundred eleven billion, eleven million, one hundred twenty-one thousand, two hundred eighty-one".