1111021202117 has 2 divisors, whose sum is σ = 1111021202118. Its totient is φ = 1111021202116.

The previous prime is 1111021202099. The next prime is 1111021202153. The reversal of 1111021202117 is 7112021201111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1108621573921 + 2399628196 = 1052911^2 + 48986^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111021202117 - 2¹⁴ = 1111021185733 is a prime.

It is a super-2 number, since 2×1111021202117² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111021202197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555510601058 + 555510601059.

It is an arithmetic number, because the mean of its divisors is an integer number (555510601059).

Almost surely, 2^{1111021202117} is an apocalyptic number.

It is an amenable number.

1111021202117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111021202117 is an equidigital number, since it uses as much as digits as its factorization.

1111021202117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 20.

Adding to 1111021202117 its reverse (7112021201111), we get a palindrome (8223042403228).

The spelling of 1111021202117 in words is "one trillion, one hundred eleven billion, twenty-one million, two hundred two thousand, one hundred seventeen".