1021102201117 has 2 divisors, whose sum is σ = 1021102201118. Its totient is φ = 1021102201116.

The previous prime is 1021102201081. The next prime is 1021102201241. The reversal of 1021102201117 is 7111022011201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 991101882681 + 30000318436 = 995541^2 + 173206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021102201117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021102201094 and 1021102201103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021102202117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510551100558 + 510551100559.

It is an arithmetic number, because the mean of its divisors is an integer number (510551100559).

Almost surely, 2^{1021102201117} is an apocalyptic number.

It is an amenable number.

1021102201117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021102201117 is an equidigital number, since it uses as much as digits as its factorization.

1021102201117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 19.

Adding to 1021102201117 its reverse (7111022011201), we get a palindrome (8132124212318).

The spelling of 1021102201117 in words is "one trillion, twenty-one billion, one hundred two million, two hundred one thousand, one hundred seventeen".