221120133277 has 2 divisors, whose sum is σ = 221120133278. Its totient is φ = 221120133276.

The previous prime is 221120133263. The next prime is 221120133301. The reversal of 221120133277 is 772331021122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207613277316 + 13506855961 = 455646^2 + 116219^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221120133277 is a prime.

It is a super-2 number, since 2×221120133277² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221120133077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110560066638 + 110560066639.

It is an arithmetic number, because the mean of its divisors is an integer number (110560066639).

Almost surely, 2^221120133277 is an apocalyptic number.

It is an amenable number.

221120133277 is a deficient number, since it is larger than the sum of its proper divisors (1).

221120133277 is an equidigital number, since it uses as much as digits as its factorization.

221120133277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 31.

Adding to 221120133277 its reverse (772331021122), we get a palindrome (993451154399).

The spelling of 221120133277 in words is "two hundred twenty-one billion, one hundred twenty million, one hundred thirty-three thousand, two hundred seventy-seven".