1202211112217 has 2 divisors, whose sum is σ = 1202211112218. Its totient is φ = 1202211112216.

The previous prime is 1202211112169. The next prime is 1202211112243. The reversal of 1202211112217 is 7122111122021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 895122239881 + 307088872336 = 946109^2 + 554156^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202211112217 - 2³² = 1197916144921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1202211112192 and 1202211112201.

It is not a weakly prime, because it can be changed into another prime (1202211111217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601105556108 + 601105556109.

It is an arithmetic number, because the mean of its divisors is an integer number (601105556109).

Almost surely, 2^{1202211112217} is an apocalyptic number.

It is an amenable number.

1202211112217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202211112217 is an equidigital number, since it uses as much as digits as its factorization.

1202211112217 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 23.

Adding to 1202211112217 its reverse (7122111122021), we get a palindrome (8324322234238).

The spelling of 1202211112217 in words is "one trillion, two hundred two billion, two hundred eleven million, one hundred twelve thousand, two hundred seventeen".