1220100211241 has 2 divisors, whose sum is σ = 1220100211242. Its totient is φ = 1220100211240.

The previous prime is 1220100211181. The next prime is 1220100211249. The reversal of 1220100211241 is 1421120010221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1218639366400 + 1460844841 = 1103920^2 + 38221^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220100211241 is a prime.

It is a super-3 number, since 3×1220100211241³ (a number of 37 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1220100211249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610050105620 + 610050105621.

It is an arithmetic number, because the mean of its divisors is an integer number (610050105621).

Almost surely, 2^{1220100211241} is an apocalyptic number.

It is an amenable number.

1220100211241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220100211241 is an equidigital number, since it uses as much as digits as its factorization.

1220100211241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1220100211241 its reverse (1421120010221), we get a palindrome (2641220221462).

It can be divided in two parts, 1220100 and 211241, that added together give a palindrome (1431341).

The spelling of 1220100211241 in words is "one trillion, two hundred twenty billion, one hundred million, two hundred eleven thousand, two hundred forty-one".