1111100020201 has 2 divisors, whose sum is σ = 1111100020202. Its totient is φ = 1111100020200.

The previous prime is 1111100020159. The next prime is 1111100020207. The reversal of 1111100020201 is 1020200011111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 557973144576 + 553126875625 = 746976^2 + 743725^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111100020201 - 2¹¹ = 1111100018153 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111100020207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555550010100 + 555550010101.

It is an arithmetic number, because the mean of its divisors is an integer number (555550010101).

Almost surely, 2^{1111100020201} is an apocalyptic number.

It is an amenable number.

1111100020201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111100020201 is an equidigital number, since it uses as much as digits as its factorization.

1111100020201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1111100020201 its reverse (1020200011111), we get a palindrome (2131300031312).

The spelling of 1111100020201 in words is "one trillion, one hundred eleven billion, one hundred million, twenty thousand, two hundred one".