1222101021217 has 2 divisors, whose sum is σ = 1222101021218. Its totient is φ = 1222101021216.

The previous prime is 1222101021131. The next prime is 1222101021223. The reversal of 1222101021217 is 7121201012221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 812736507361 + 409364513856 = 901519^2 + 639816^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222101021217 - 2²⁷ = 1221966803489 is a prime.

It is a super-2 number, since 2×1222101021217² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1222101021227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611050510608 + 611050510609.

It is an arithmetic number, because the mean of its divisors is an integer number (611050510609).

Almost surely, 2^{1222101021217} is an apocalyptic number.

It is an amenable number.

1222101021217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222101021217 is an equidigital number, since it uses as much as digits as its factorization.

1222101021217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 1222101021217 its reverse (7121201012221), we get a palindrome (8343302033438).

The spelling of 1222101021217 in words is "one trillion, two hundred twenty-two billion, one hundred one million, twenty-one thousand, two hundred seventeen".